24 results on '"Leonardo Simonella"'
Search Results
2. Exploring the Impact of Diffuse Large B-Cell Lymphoma (International Prognostic Index [IPI] 2-5) on Clinical and Patient-Relevant Outcomes in the Context of a Clinical Trial
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R. Ho, Andrea Knapp, Per-Olof Thuresson, Irene Canales Ruiz, Leonardo Simonella, and Aino Launonen
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Oncology ,medicine.medical_specialty ,business.industry ,Immunology ,Context (language use) ,Cell Biology ,Hematology ,medicine.disease ,Biochemistry ,Clinical trial ,International Prognostic Index ,Patient-Relevant Outcomes ,Internal medicine ,Medicine ,business ,Diffuse large B-cell lymphoma - Abstract
Background: Most patients (pts) with diffuse large B-cell lymphoma (DLBCL) receiving first-line (1L) rituximab plus CHOP (R-CHOP) have similar mortality to the general population (gen popn) if they are progression-free at 24 months (PFS24; Maurer et al. Ann Oncol 2018). Characterization of quality of life (QoL) and clinical outcomes may enable more patient-relevant treatment decisions. Using GOYA trial data (NCT01287741) comparing obinutuzumab (G) + CHOP (G-CHOP) with R-CHOP, we present an exploratory analysis of 1L DLBCL pts with IPI 2-5 and assess overall survival (OS) and QoL relative to the gen popn. GOYA was not included in the previous PFS24 analysis by Maurer et al. Methods: We used data from both GOYA treatment arms to identify pts with IPI 2-5 DLBCL (n=1132 pts, intent-to-treat popn). Post-progression survival (PPS) in DLBCL is independent of prior treatment (Coiffier et al. Blood 2010) and as PFS was similar between treatment arms in GOYA, we assumed similar mortality after PFS24. Clinical outcomes were PFS24 (progression-free ≥24 months [m] from treatment start); early relapse (disease progression [PD] Post-relapse survival in pts with early vs late relapse was assessed using Kaplan-Meier (KM) estimates and Cox regression. QoL was assessed using EQ-5D-3L and UK-based tariffs (Dolan. Med Care 1997); association between QoL and clinical outcomes used a linear mixed-effects model. The proportion of pts with PFS24 reporting QoL problems at baseline and after 24m was compared with age- and country-matched values in the gen popn (Janssen et al. Springer 2014). Data cut-off was Jan 2018 (GOYA final data cut); overall median follow-up was 48m. Results: In the overall IPI 2-5 population, mean age at treatment initiation was 61 yrs. 711 pts reached PFS24, of whom 64 experienced a late relapse (Table 1). Early relapse was experienced by 261 pts, of whom 164 were Mortality following PFS24 was 72% of the matched gen popn (SMR 0.72; not significant: 95% CI 0.44-1.11). Mortality following relapse in pts who experienced early relapse was over 33 times higher than expected in the matched gen popn (SMR 33.57, 95% CI 27.69-40.33). However, risk of death following late relapse was reduced by 78% compared with risk following early relapse (HR 0.22 95 CI% 0.12-0.40), and mortality following late relapse was significantly higher than in the matched gen popn (SMR 6.7, 95% CI 3.05-12.67). Mean QoL utility score at baseline was 0.69 for all pts. After pts reached PFS24, estimated mean utility score was 0.86 (95% CI 0.84-0.87) and worsened by -0.07 (95% CI -0.14 to -0.01) at time of subsequent relapse. For early-relapsing pts, the worsening in utility was -0.15 (95% CI -0.20 to -0.10) compared with those still progression-free (Table 2). Among all PFS24 pts at baseline, problems were reported with mobility (28.1%), self-care (12.6%), usual activities (41.8%), pain/discomfort (62.7%), and anxiety/depression (48.8%); these rates were 2.2-4.7 times higher than the gen popn based on age- and country-standardized values. Compared with the gen popn, after pts reached PFS24, pain/discomfort was 10% lower, whereas anxiety/depression was 34% higher and other QoL items were approximately 20% higher. Conclusions: Most of the clinical course of 1L DLBCL occurred ≤2 years after start of treatment. In DLBCL pts with IPI 2-5 achieving PFS24, mortality was similar to the gen popn, and with the exception of mental health metrics, QoL scores were also similar to the gen popn. Late relapse (≥2 yrs) was associated with better post-relapse survival than early relapse ( Figure 1 Figure 1. Disclosures Launonen: F. Hoffmann-La Roche Ltd: Current Employment. Ho: F. Hoffmann-La Roche Ltd: Current Employment. Knapp: F. Hoffmann-La Roche Ltd: Current Employment. Canales Ruiz: Clinical Project Manager in Clinica Universidad de Navarra: Current Employment. Simonella: F. Hoffmann-La Roche Ltd: Current Employment. Thuresson: F. Hoffmann-La Roche Ltd: Current Employment, Current equity holder in publicly-traded company.
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- 2021
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3. Pregnancy during breast cancer: does a mother’s parity status modify an offspring’s mortality risk?
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Jenny Liu, Helena M. Verkooijen, Leonardo Simonella, Gustaf Edgren, Kamila Czene, Miao Hui, Agus Salim, and Mikael Hartman
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Adult ,Cancer Research ,medicine.medical_specialty ,Population ,Breast Neoplasms ,Breast cancer ,Pregnancy ,Cause of Death ,Infant Mortality ,medicine ,Humans ,Registries ,Child ,education ,Proportional Hazards Models ,education.field_of_study ,Proportional hazards model ,Obstetrics ,business.industry ,Mortality rate ,Hazard ratio ,Infant ,Middle Aged ,medicine.disease ,Survival Analysis ,Infant mortality ,Parity ,Oncology ,Child, Preschool ,Relative risk ,Child Mortality ,Female ,business ,Pregnancy Complications, Neoplastic - Abstract
To assess whether children born to primiparous women around the time of a breast cancer diagnosis have an increased mortality risk. From the merged Swedish Multi-Generation and Cancer Registers, we identified 49,750 eligible children whose mother was diagnosed with breast cancer between 1958 and 2010. Mortality rates in offspring were compared to the background population using standardized mortality ratios (SMR), adjusted for calendar year of birth, attained age, and sex, and calculated for each category of timing of delivery (before, around, or after mother's diagnosis) and mother's parity status. Hazard ratios were assessed using a Cox proportional hazards model and adjusted for socioeconomic status, year of birth and mother's age at birth. Children born to a primiparous woman around a breast cancer diagnosis had a mortality rate five times greater than the background population (SMR 5.26, 95 % CI 1.93-11.5), whereas children born to a multiparous woman had a twofold increase (SMR 2.40, 95 % CI 1.10-4.55). Children of primiparous women born around diagnosis had an adjusted hazard ratio fourfold to that of children of primiparous women born before their mother's diagnosis (HR 4.29, 95 % CI 1.68-8.91), whereas hazard ratios for children of primiparous or multiparous women born at other times were not statistically significant. Children born to primiparous women around a breast cancer diagnosis have an increased relative mortality risk. Although relative risk is increased, in absolute terms children born from a cancer complicated pregnancy do relatively well. Additional investigations are needed to elucidate the reason(s) underlying this observation before the information can be used to inform patient counseling and clinical care.
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- 2014
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4. Quantifying the natural history of breast cancer
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K. S. Chia, Leonardo Simonella, Mikael Hartman, W-Y Lim, Y-W Lim, Adrian Roellin, Kristin Hui Xian Tan, Alex R. Cook, and Hwee Lin Wee
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Oncology ,Adult ,Cancer Research ,medicine.medical_specialty ,indolent ductal carcinoma in situ ,Population ,Breast Neoplasms ,Markov model ,Models, Biological ,law.invention ,modelling ,tumour size ,Breast cancer ,breast cancer ,Randomized controlled trial ,law ,Internal medicine ,medicine ,Carcinoma ,Mammography ,Humans ,education ,Early Detection of Cancer ,Aged ,Randomized Controlled Trials as Topic ,Sweden ,education.field_of_study ,medicine.diagnostic_test ,business.industry ,Carcinoma in situ ,Carcinoma, Ductal, Breast ,Reproducibility of Results ,Middle Aged ,medicine.disease ,Markov Chains ,Natural history ,Clinical Study ,Disease Progression ,Female ,business ,Monte Carlo Method ,Carcinoma in Situ - Abstract
Background: Natural history models of breast cancer progression provide an opportunity to evaluate and identify optimal screening scenarios. This paper describes a detailed Markov model characterising breast cancer tumour progression. Methods: Breast cancer is modelled by a 13-state continuous-time Markov model. The model differentiates between indolent and aggressive ductal carcinomas in situ tumours, and aggressive tumours of different sizes. We compared such aggressive cancers, that is, which are non-indolent, to those which are non-growing and regressing. Model input parameters and structure were informed by the 1978–1984 Ostergotland county breast screening randomised controlled trial. Overlaid on the natural history model is the effect of screening on diagnosis. Parameters were estimated using Bayesian methods. Markov chain Monte Carlo integration was used to sample the resulting posterior distribution. Results: The breast cancer incidence rate in the Ostergotland population was 21 (95% CI: 17–25) per 10 000 woman-years. Accounting for length-biased sampling, an estimated 91% (95% CI: 85–97%) of breast cancers were aggressive. Larger tumours, 21–50 mm, had an average sojourn of 6 years (95% CI: 3–16 years), whereas aggressive ductal carcinomas in situ took around half a month (95% CI: 0–1 month) to progress to the invasive ⩽10 mm state. Conclusion: These tumour progression rate estimates may facilitate future work analysing cost-effectiveness and quality-adjusted life years for various screening strategies.
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- 2013
5. Pathways to the diagnosis of thyroid cancer in New South Wales: a population-based cross-sectional study
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Clare Kahn, Dianne L. O'Connell, Owen Ung, Leonardo Simonella, Steven C. Boyages, and Mark Sywak
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Adult ,Male ,Cancer Research ,Pediatrics ,medicine.medical_specialty ,Pathology ,diagnosis ,Early Detection, Diagnosis, and Prognosis - Resources and Infrastructure ,Population ,detection ,methods ,Cohort Studies ,Surveys and Questionnaires ,Epidemiology ,medicine ,Humans ,Mass Screening ,cancer ,cancer registry ,Women ,Thyroid Neoplasms ,Registries ,education ,Thyroid cancer ,Aged ,education.field_of_study ,Wales ,business.industry ,Research ,Incidence ,Incidence (epidemiology) ,Thyroid disease ,Thyroid ,Australia ,Cancer ,Middle Aged ,medicine.disease ,Cancer registry ,Cancer Type - Thyroid ,Cross-Sectional Studies ,medicine.anatomical_structure ,Oncology ,Cancer Control, Survivorship, and Outcomes Research - Surveillance ,Female ,pathology ,epidemiology ,New South Wales ,business - Abstract
Background Over the past few decades, an increase in the incidence of thyroid cancer has been recorded in many countries around the world including Australia. Heightened medical surveillance and increased technological sensitivity could be contributing to greater detection of asymptomatic disease. Objectives To describe the pathways to diagnosis of thyroid cancer for a cohort of newly diagnosed patients in New South Wales (NSW), Australia, and compare these pathways by age, sex, place of residence, ethnic background, medical insurance status, and disease characteristics. Methods A total of 452 newly diagnosed cases of thyroid cancer were recruited through the population-based NSW Central Cancer Registry. Participants completed a questionnaire and diary of doctor visits and investigations that led to their diagnosis. Tumor characteristics were obtained from pathology reports. Results Forty percent of patients initially presented to their doctor with a lump or symptom specific to thyroid cancer and 60% had their cancer detected incidentally during a medical encounter. Men were more likely than women to be diagnosed after imaging for another health concern versus reporting a thyroid lump or symptom (p = 0.001). Thyroid cancer diagnosis after imaging for another health concern increased with age (p = 0.023), and larger tumors were less likely to be diagnosed after treatment for a benign thyroid disease (p = 0.040). Conclusion As the majority of participants had incidental diagnoses, the reported incidence of thyroid cancer is likely to be influenced by diagnostic technology and medical surveillance practices. This, however, probably only partly explains the observed rise in the incidence of thyroid cancer in NSW.
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- 2011
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6. Prevention of cervical cancer in rural China: Evaluation of HPV vaccination and primary HPV screening strategies
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Megan Smith, Jie-Bin Lew, Karen Canfell, Rosa Legood, Jufang Shi, Leonardo Simonella, Robert Walker, Jun-Feng Chen, You-Lin Qiao, Carolyn Nickson, and Fang-Hui Zhao
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Adult ,Rural Population ,China ,Pediatrics ,medicine.medical_specialty ,Adolescent ,Cost effectiveness ,Cost-Benefit Analysis ,Population ,Uterine Cervical Neoplasms ,Young Adult ,Virology ,Humans ,Mass Screening ,Medicine ,Papillomavirus Vaccines ,Papillomaviridae ,Young adult ,Child ,education ,Mass screening ,Aged ,Aged, 80 and over ,Gynecology ,Cervical cancer ,education.field_of_study ,Models, Statistical ,Cervical screening ,General Veterinary ,General Immunology and Microbiology ,biology ,business.industry ,Public Health, Environmental and Occupational Health ,Middle Aged ,biology.organism_classification ,medicine.disease ,Vaccination ,Infectious Diseases ,Molecular Medicine ,Female ,business - Abstract
Comprehensive evaluation of the cost-effectiveness of HPV vaccination in China has not previously been performed. The objective of this study was to evaluate vaccination as an alternative or addition to primary HPV screening with careHPV (Qiagen, Gaithersburg, USA), and to assess the threshold total cost per vaccinated girl (CVG) at which strategies involving vaccination would become viable compared to screening-only strategies in rural China. We used data from field studies in Shanxi Province to support modelling of HPV vaccination and screening, including local information on sexual behaviour, HPV prevalence, test accuracy, treatment protocols and costs. We evaluated several strategies involving screening once or twice per lifetime or at regular 5-yearly intervals, with or without vaccination of young females at age 15 years, assuming 70% coverage for both screening and vaccination. We also predicted cross-sectional cancer incidence each year to the year 2050 for a range of strategies. We found that strategies involving vaccination would be cost-effective at CVGs of US$50-54 or less, but at CVGs >$54, screening-only strategies would be more cost-effective. If vaccination of young cohorts is combined with two rounds of careHPV screening for women aged 30-59 years in 2012 and 2027, a predicted indicative 33% reduction in cervical cancer incidence by 2030 would be sustained until 2050, with incidence rates decreasing thereafter. In conclusion, taking into account estimated vaccine delivery costs (for 3 doses), a per-dose HPV vaccine cost of approximately
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- 2011
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7. Underutilization of radiotherapy for lung cancer in New South Wales, Australia
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Bruce K. Armstrong, Geoff P. Delaney, David Goldsbury, Leonardo Simonella, Dianne L. O'Connell, and Shalini K Vinod
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Adult ,Oncology ,Cancer Research ,medicine.medical_specialty ,Lung Neoplasms ,medicine.medical_treatment ,Antineoplastic Agents ,Carcinoma, Non-Small-Cell Lung ,Internal medicine ,Humans ,Medicine ,Practice Patterns, Physicians' ,Stage (cooking) ,Lung cancer ,Aged ,Aged, 80 and over ,Lung ,Radiotherapy ,business.industry ,Respiratory disease ,Australia ,Cancer ,Middle Aged ,medicine.disease ,Combined Modality Therapy ,Small Cell Lung Carcinoma ,Surgery ,Cancer registry ,Radiation therapy ,medicine.anatomical_structure ,Radiotherapy, Adjuvant ,New South Wales ,business - Abstract
BACKGROUND: Lung cancer is the leading cause of cancer death in most developed countries. Radiotherapy is important in its treatment, with an estimated optimal utilization rate between 45% and 68% at initial diagnosis. The objective of this study was to describe radiotherapy practice for lung cancer in New South Wales (NSW), Australia. METHODS: Patients with lung cancer were identified prospectively from the NSW Central Cancer Registry (CCR) from November 1, 2001 to December 31, 2002. Questionnaires were mailed to diagnosing and treating clinicians to obtain detailed information on diagnosis, staging, referrals, and treatment. The authors describe referral for and receipt of radiotherapy treatment. RESULTS: Of 1812 patients with lung cancer patients who were identified, 943 patients (52%) were referred for radiotherapy, 846 patients (47%) received a radiotherapy questionnaire, and 727 patients (40%) received radiotherapy. Compared with optimal radiotherapy, there was less curative radiotherapy to the primary site (20% actual vs 50% optimal), and there was more palliative radiotherapy to metastatic sites (36% actual vs 11% optimal). The greatest shortfall in radiotherapy use was observed in patients who had limited stage small cell lung cancer (46% actual vs 94% optimal). The use of combined-modality treatment for stage III nonsmall cell lung cancer and for limited stage small cell lung cancer was uncommon. CONCLUSIONS: There is underutilization of radiotherapy for lung cancer in NSW, especially in small cell lung cancer. The use of combined-modality treatment for potentially curable lung cancers is suboptimal. These issues have to be addressed to improve survival and quality of life for patients with lung cancer.
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- 2010
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8. No improvement in lung cancer care: the management of lung cancer in 1996 and 2002 in New South Wales
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David Goldsbury, Rajah Supramaniam, Niloofar Esmaili, Andrew Hui, Geoff P. Delaney, Michael J. Hensley, Dianne L. O'Connell, Bruce K. Armstrong, Leonardo Simonella, Michael Boyer, and Shalini K Vinod
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medicine.medical_specialty ,Performance status ,business.industry ,Medical record ,Odds ratio ,Logistic regression ,medicine.disease ,Confidence interval ,Odds ,Internal medicine ,Internal Medicine ,medicine ,Small Cell Lung Carcinoma ,Intensive care medicine ,business ,Lung cancer - Abstract
Background: Patterns-of-care studies emphasize significant variation in the management of lung cancer. The aim of the study was to compare the patterns of care for patients diagnosed with lung cancer in 1996 and 2002 within three health areas in New South Wales. Methods: Treatment data were collected from medical records and treating doctors for the calendar year 1996 and between 1 November 2001 and 31 December 2002. Patients were residents of either south-western Sydney, Hunter or Northern Sydney health areas at the time of diagnosis. χ2-tests were used to investigate changes in treatment patterns between the two time periods. An adjusted odds ratio for treatment in 2002 relative to 1996 was calculated using logistic regression. Results: Data were available for 738 and 567 cases in 1996 and 2002, respectively. Cancer-specific therapy was given within 6 months of diagnosis to 62 and 64% of patients, respectively. Adjusting for health area, age, sex, pathology and performance status, the odds ratio (OR) of treatment in 2002 relative to 1996 was 1.03 (95% confidence interval (CI) 0.78–1.35). When stage was included, the odds of treatment in 2002 relative to 1996 for non-small-cell lung cancer (n = 950) was 1.21 (95%CI 0.87–1.68). After adjustment for potential confounders, patients diagnosed with small-cell lung cancer (n = 176) were substantially less likely to receive treatment in 2002 compared with patients diagnosed in 1996 (OR = 0.11; 95%CI 0.04–0.34). Conclusion: The odds of receiving treatment in 2002 and 1996 were similar. However, patients diagnosed with small-cell lung cancer in 2002 were significantly less likely to receive treatment. Overall, this study suggests there has been no change in lung cancer care in New South Wales. Further work is required to determine what proportion of persons with lung cancer should receive cancer-specific treatment so that clinical practices can be judged appropriately.
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- 2008
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9. Gaps in Optimal Care for Lung Cancer
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Rajah Supramaniam, Danielle Miller, Michael Boyer, Leonardo Simonella, Shalini K Vinod, Dianne L. O'Connell, Matthew J. Peters, Leslie McCawley, Bruce K. Armstrong, and Geoff P. Delaney
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Adult ,Male ,Cancer-specific therapy ,Pulmonary and Respiratory Medicine ,medicine.medical_specialty ,Lung Neoplasms ,Adolescent ,medicine.medical_treatment ,Patterns of care ,Population ,Young Adult ,Carcinoma, Non-Small-Cell Lung ,Surveys and Questionnaires ,Internal medicine ,Humans ,Medicine ,Registries ,Carcinoma, Small Cell ,Young adult ,Child ,Intensive care medicine ,education ,Lung cancer ,Survival rate ,Aged ,Neoplasm Staging ,Quality of Health Care ,Aged, 80 and over ,Patient Care Team ,education.field_of_study ,Performance status ,business.industry ,Infant, Newborn ,Infant ,Cancer ,Middle Aged ,medicine.disease ,Cancer registry ,Survival Rate ,Radiation therapy ,Oncology ,Child, Preschool ,Practice Guidelines as Topic ,Female ,business ,Delivery of Health Care - Abstract
Purpose Lung cancer is the leading cause of cancer death in Australia, but little is known about how Australian patients with this disease are managed. Methods Lung cancer patients diagnosed from November 1, 2001 to December 31, 2002 were identified through the population-based New South Wales Central Cancer Registry. Information was collected on diagnosis, staging, referrals, and treatment. Cross-tabulations and logistic regression examined factors related to not receiving cancer-specific therapy. Results There were 2931 potentially eligible patients registered by the Central Cancer Registry and completed questionnaires were obtained for 1812 patients (62%); median age 71 years and 66% men. The pathology was non-small cell in 71%, small cell in 15% and not confirmed in 13% of patients. Eleven percent of patients did not see a lung cancer specialist and 33% received no cancer-specific therapy after initial diagnosis. Treatment utilization rates were 17% for surgery, 39% for radiotherapy, and 30% for chemotherapy. Factors significantly associated with having no cancer-specific therapy included female gender, older age, weight loss, poorer performance status, advanced or unknown disease stage, and consultation with a low patient volume lung cancer specialist or a non-lung cancer specialist. The median survival was 172 days and 2-year crude survival was 17%. Conclusions Treatment patterns were in broad concordance with present national guidelines. Nevertheless, a significant proportion of lung cancer patients did not receive cancer-specific therapy. Treatment decisions should be multidisciplinary and decision-makers should include experienced lung cancer specialists.
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- 2008
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10. Barriers to early presentation of self-discovered breast cancer in Singapore and Malaysia: a qualitative multicentre study
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Tar-Ching Aw, Barbara Potrata, Mikael Hartman, Maznah Dahlui, Rifhan Azwani Mazlan, Celene W. Q. Ng, Jennifer N W Lim, Leonardo Simonella, and Nur Aishah Taib
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Adult ,medicine.medical_specialty ,Pediatrics ,Health Knowledge, Attitudes, Practice ,Ethnic group ,Breast Neoplasms ,Global Health ,Breast cancer ,PREVENTIVE MEDICINE ,medicine ,Humans ,Healthcare Disparities ,Socioeconomic status ,Early Detection of Cancer ,Qualitative Research ,Preventive healthcare ,Malay ,Aged ,Neoplasm Staging ,Aged, 80 and over ,Singapore ,business.industry ,Public health ,Research ,Health services research ,Malaysia ,Breast Self-Examination ,General Medicine ,Middle Aged ,Patient Acceptance of Health Care ,medicine.disease ,language.human_language ,Family medicine ,language ,Female ,Thematic analysis ,business - Abstract
Objective To explore and compare barriers to early presentation of self-discovered breast cancer in Singapore and Malaysia. Design A qualitative interview study with thematic analysis of transcripts. Participants 67 patients with self-discovered breast symptoms were included in the analysis. Of these, 36% were of Malay ethnicity, 39% were Chinese and 25% Indian, with an average age of 58 years (range 24–82 years). The number of women diagnosed at early stages of cancer almost equalled those at advanced stages. Approximately three-quarters presented with a painless lump, one-quarter experienced a painful lump and 10% had atypical symptoms. Setting University hospital setting in Singapore and Malaysia. Results Patients revealed barriers to early presentation not previously reported: the poor quality of online website information about breast symptoms, financial issues and the negative influence of relatives in both countries, while perceived poor quality of care and services in state-run hospitals and misdiagnosis by healthcare professionals were reported in Malaysia. The pattern of presentation by ethnicity remained unchanged where more Malay delayed help-seeking and had more advanced cancer compared to Chinese and Indian patients. Conclusions There are few differences in the pattern of presentation and in the reported barriers to seek medical care after symptom discovery between Singapore and Malaysia despite their differing economic status. Strategies to reduce delayed presentation are: a need to improve knowledge of disease, symptoms and causes, quality of care and services, and quality of online information; and addressing fear of diagnosis, treatment and hospitalisation, with more effort focused on the Malay ethnic group. Training is needed to avoid missed diagnoses and other factors contributing to delay among health professionals.
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- 2015
11. Development of a quality framework for models of cervical screening and its application to evaluations of the cost-effectiveness of HPV vaccination in developed countries
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Leonardo Simonella and Karen Canfell
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medicine.medical_specialty ,Cost effectiveness ,Cost-Benefit Analysis ,Uterine Cervical Neoplasms ,Context (language use) ,HPV vaccines ,Disease ,Cervix Uteri ,medicine ,Humans ,Mass Screening ,Medical physics ,Early Detection, Diagnosis, and Prognosis - Resources and InfrastructureCancer Control, Survivorship, and Outcomes Research - Health Services, Economic and Health Policy Analyses ,Papillomavirus Vaccines ,Papillomaviridae ,Cervical cancer ,Gynecology ,Cervical screening ,General Veterinary ,General Immunology and Microbiology ,business.industry ,Developed Countries ,Papillomavirus Infections ,Vaccination ,Public Health, Environmental and Occupational Health ,medicine.disease ,Infectious Diseases ,Molecular Medicine ,Female ,business ,Developed country ,Cancer Type - Cervical Cancer - Abstract
Background HPV vaccination has now been introduced in most developed countries, but this has occurred in the context of established cervical cancer screening mechanisms which provide population-level protection against the most common HPV-related cancer. Therefore, estimating the cost-effectiveness of HPV vaccination to further reduce HPV-related disease depends in large part on the estimation of the effectiveness of the cervical screening ‘background’. The aim of this study was to systematically review and assess methods for simulating cervical screening in decision analytic models used for evaluation of HPV vaccination. Methods Existing quality frameworks for economic models were extended to develop a specific quality framework for models of cervical screening. This involved domains for model structure, parameterisation (data sources) and validation (consistency). A systematic review of economic evaluations of HPV vaccination was then conducted, and assessment of cervical screening model components was then performed via application of the new quality framework. Results Generally, models took into account population-level cervical screening participation, but were inconsistent in their approach to modelling abnormal smear management, diagnostic evaluation and treatment of precancerous disease. There was also considerable variability in the accuracy of modelling clinical pathways and the scope of validation performed for screening-related outcomes, with focus directed towards cervical cancer targets. Only a few models comprehensively validated against observed pre-cancerous abnormalities. Conclusion Models of HPV vaccination in developed countries can be improved by further attention to the ‘background’ modelling of secondary protection via cervical screening. The quality framework developed for this review can be used to inform future HPV vaccination evaluations, including evaluations of the cost-effectiveness of male vaccination and next generation HPV vaccines, and to assess models used to evaluate new cervical screening technologies and recommendations.
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- 2013
12. The impact of a two- versus three-yearly cervical screening interval recommendation on cervical cancer incidence and mortality: an analysis of trends in Australia, New Zealand, and England
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Karen Canfell and Leonardo Simonella
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trends ,Adult ,Cancer Research ,medicine.medical_specialty ,analysis ,Early Detection, Diagnosis, and Prognosis - Resources and Infrastructure ,Uterine Cervical Neoplasms ,Cervical Cancer ,methods ,Young Adult ,Epidemiology ,Medicine ,cancer ,Humans ,Women ,Young adult ,Mortality ,Opportunistic screening ,Survival analysis ,Early Detection of Cancer ,Aged ,Cervical screening ,Wales ,business.industry ,Public health ,Incidence (epidemiology) ,Research ,screening ,Incidence ,cervical ,Australia ,Middle Aged ,mortality ,Survival Analysis ,Oncology ,England ,Cancer Control, Survivorship, and Outcomes Research - Surveillance ,epidemiology ,Female ,business ,Cervical cancer incidence ,Demography ,Cancer Type - Cervical Cancer ,New Zealand - Abstract
To assess the impact of cervical screening interval recommendations on cervical cancer incidence and mortality during periods of organized and opportunistic screening in Australia (2-yearly screening interval for organized screening), New Zealand (3 yearly interval for organized screening), and England (3/5 yearly interval for organized screening). Changes in cervical cancer rates over two 10-year periods were assessed in each country among women aged 20-69 years using a standardized rate ratio (SRR). The SRR for opportunistic screening was calculated from 1973-1977 to 1983-1987 (mortality only), and for organized screening from 1993-1997 to 2003-2007 (mortality and incidence). During the period of opportunistic cervical screening, mortality reduced by 24 % in Australia and 10 % in England and Wales [Australia: SRR 0.76 (95 % CI 0.71-0.83); England and Wales: SRR 0.90 (95 % CI 0.87-0.93)]; no statistically significant reduction was observed in New Zealand [SRR 0.95 (95 % CI 0.82-1.11)]. After the introduction of organized screening, mortality reduced 39-45 % in each country [Australia: SRR 0.56 (95 % CI 0.51-0.62); New Zealand: SRR 0.53 (95 % CI 0.44-0.63); England and Wales: SRR 0.61 (95 % CI 0.58-0.64)], while incidence reduced 19-38 % [New Zealand: SRR 0.62 (95 % CI 0.56-0.69); Australia: SRR 0.64 (95 % CI 0.61-0.72); England: SRR 0.81 (95 % CI 0.78-0.83)]. In the era of opportunistic screening, some reductions were observed in cervical cancer mortality rates, but these were relatively modest and seen inconsistently between countries. After the introduction of organized cervical screening, cervical cancer mortality rates fell by a similar amount (~40 % or more) in all countries, and incidence fell by more than a third in Australia and New Zealand and by approximately one-fifth in England. Although several factors are likely to have influenced these observed reductions in cervical cancer rates, these findings do not support the more frequent 2-yearly cervical screening interval recommendation in Australia. The impact of a two-versus three-yearly cervical screening interval... | Request PDF. Available from: https://www.researchgate.net/publication/247157726_The_impact_of_a_two-versus_three-yearly_cervical_screening_interval_recommendation_on_cervical_cancer_incidence_and_mortality_An_analysis_of_trends_in_Australia_New_Zealand_and_England [accessed Feb 14 2018].
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- 2012
13. Using administrative health data to describe colorectal and lung cancer care in New South Wales, Australia: a validation study
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David Goldsbury, Leonardo Simonella, Katie Armstrong, Dianne L. O'Connell, and Bruce K. Armstrong
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Male ,Colorectal cancer ,medicine.medical_treatment ,Patterns of care ,Disease ,Comorbidity ,Health Services Accessibility ,Comorbidities ,surgery ,Patient Admission ,Validation ,Registries ,Lung ,Investigative procedures ,Aged, 80 and over ,education.field_of_study ,Cancer Type - Lung Cancer ,lcsh:Public aspects of medicine ,Health Policy ,Data Collection ,Middle Aged ,Cancer Control, Survivorship, and Outcomes Research - Resources and Infrastructure ,Population Surveillance ,Female ,Medical Record Linkage ,New South Wales ,Lung cancer ,Colorectal Neoplasms ,Disease stage ,Research Article ,Adult ,medicine.medical_specialty ,Population ,colorectal cancer ,Breast Neoplasms ,Sensitivity and Specificity ,methods ,medicine ,cancer ,cancer registry ,Cancer Type - Bowel & Colorectal Cancer ,Humans ,Chemotherapy ,Sex Distribution ,education ,radiotherapy ,Aged ,Neoplasm Staging ,Gynecology ,Wales ,Radiotherapy ,business.industry ,Linked data ,Research ,Australia ,Cancer ,Reproducibility of Results ,lcsh:RA1-1270 ,medicine.disease ,Cancer registry ,Radiation therapy ,Emergency medicine ,Surgery ,Other ,business - Abstract
Background Monitoring treatment patterns is crucial to improving cancer patient care. Our aim was to determine the accuracy of linked routinely collected administrative health data for monitoring colorectal and lung cancer care in New South Wales (NSW), Australia. Methods Colorectal and lung cancer cases diagnosed in NSW between 2000 and 2002 were identified from the NSW Central Cancer Registry (CCR) and linked to their hospital discharge records in the NSW Admitted Patient Data Collection (APDC). These records were then linked to data from two relevant population-based patterns of care surveys. The main outcome measures were the sensitivity and specificity of data from the CCR and APDC for disease staging, investigative procedures, curative surgery, chemotherapy, radiotherapy, and selected comorbidities. Results Data for 2917 colorectal and 1580 lung cancer cases were analysed. Unknown disease stage was more common for lung cancer in the administrative data (18%) than in the survey (2%). Colonoscopies were captured reasonably accurately in the administrative data compared with the surveys (82% and 79% respectively; 91% sensitivity, 53% specificity) but all other colorectal or lung cancer diagnostic procedures were under-enumerated. Ninety-one percent of colorectal cancer cases had potentially curative surgery recorded in the administrative data compared to 95% in the survey (96% sensitivity, 92% specificity), with similar accuracy for lung cancer (16% and 17%; 92% sensitivity, 99% specificity). Chemotherapy (~40% sensitivity) and radiotherapy (sensitivity≤30%) were vastly under-enumerated in the administrative data. The only comorbidity that was recorded reasonably accurately in the administrative data was diabetes. Conclusions Linked routinely collected administrative health data provided reasonably accurate information on potentially curative surgical treatment, colonoscopies and comorbidities such as diabetes. Other diagnostic procedures, comorbidities, chemotherapy and radiotherapy were not well enumerated in the administrative data. Other sources of data will be required to comprehensively monitor the primary management of cancer patients.
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- 2012
14. Postsurgical pathology reporting of thyroid cancer in New South Wales, Australia
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Steven C. Boyages, Clare Kahn, Dianne L. O'Connell, Leonardo Simonella, Mark Sywak, and Owen Ung
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Adult ,Male ,medicine.medical_specialty ,Adolescent ,Lymphovascular invasion ,Endocrinology, Diabetes and Metabolism ,medicine.medical_treatment ,Cohort Studies ,Young Adult ,Endocrinology ,medicine ,Humans ,Postoperative Period ,Registries ,Thyroid Neoplasms ,Young adult ,Thyroid cancer ,Aged ,Retrospective Studies ,business.industry ,General surgery ,Carcinoma ,Thyroidectomy ,Retrospective cohort study ,Middle Aged ,medicine.disease ,Prognosis ,Carcinoma, Papillary ,Cancer registry ,Surgery ,Cross-Sectional Studies ,Thyroid Cancer, Papillary ,Carcinoma, Medullary ,Lymphatic Metastasis ,Cohort ,Female ,Guideline Adherence ,New South Wales ,business ,Cohort study - Abstract
Clear, accurate, and complete reporting of postsurgical pathology is crucial for the correct evaluation and management of thyroid cancer patients. This study aimed to describe the completeness, as defined by international guidelines, of pathology reporting in a cohort of newly diagnosed thyroid cancer patients in New South Wales (NSW) and to identify factors associated with the completeness of reports.Postsurgical pathology reports, held by the NSW Central Cancer Registry, for 448 thyroid cancer patients were reviewed. Presence or absence of recommended key features (tumor histology type, maximum dimension, focality, completeness of excision, extrathyroidal extension, lymphovascular invasion, and lymph node involvement) was recorded. Associations between the number of key items reported and several patient characteristics were investigated.For 285 (63.6%) patients one or more key pathological features were missing, with 177 (39.5%) missing one only, 88 (19.6%) missing two, and 20 (4.5%) missing three or more. Extrathyroidal extension was the most poorly reported key feature, being present in only 228 (50.9%) reports [95% confidence interval 46.2, 55.6]. Pathology reports were less complete for patients with small tumor size (p0.001) or localized spread (p0.001). Synoptic reports were significantly more complete than narrative-style reports (98.3% vs. 27.1%, p0.001).Postsurgical pathology reporting of differentiated thyroid cancer in NSW was found to be far from complete, with 64% of reports missing information on at least one feature that is considered internationally to be a critical factor in the prognosis and treatment of thyroid cancer patients. Synoptic reporting reduces the number of key features missing from pathology reports.
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- 2012
15. Evaluation of primary HPV-DNA testing in relation to visual inspection methods for cervical cancer screening in rural China: an epidemiologic and cost-effectiveness modelling study
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Jufang Shi, Rosa Legood, Xiang-Xian Feng, Yoon-Jung Kang, Yan Ning, Karen Canfell, Li Ma, Yong-Zhen Zhang, Megan Smith, Jie-Bin Lew, Fang-Hui Zhao, Jun-Feng Chen, Leonardo Simonella, and You-Lin Qiao
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Cancer Research ,medicine.medical_specialty ,Cost effectiveness ,Uterine Cervical Neoplasms ,Physical examination ,Cervical intraepithelial neoplasia ,lcsh:RC254-282 ,High-Throughput Screening Assays ,Genetics ,medicine ,Humans ,Mass Screening ,DNA Probes, HPV ,Coloring Agents ,Physical Examination ,Early Detection of Cancer ,Mass screening ,Acetic Acid ,Cervical cancer ,Gynecology ,medicine.diagnostic_test ,business.industry ,Obstetrics ,Papillomavirus Infections ,Health Care Costs ,Uterine Cervical Dysplasia ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,Visual inspection ,Oncology ,DNA, Viral ,High Grade Cervical Intraepithelial Neoplasia ,Female ,business ,Research Article - Abstract
Background A new lower-cost rapid-throughput human papillomavirus (HPV) test (careHPV, Qiagen, Gaithersburg, USA) has been shown to have high sensitivity for the detection of high grade cervical intraepithelial neoplasia. Methods We assessed the outcomes and cost-effectiveness of careHPV screening in rural China, compared to visual inspection with acetic acid, when used alone (VIA) or in combination with Lugol's iodine (VIA/VILI). Using data on sexual behaviour, test accuracy, diagnostic practices and costs from studies performed in rural China, we estimated the cost-effectiveness ratio (CER) and associated lifetime outcomes for once-lifetime and twice-lifetime screening strategies, and for routine screening at 5-yearly, 10-yearly and IARC-recommended intervals. The optimal age range for once-lifetime screening was also assessed. Results For all strategies, the relative ordering of test technologies in reducing cervical cancer incidence and mortality was VIA (least effective); VIA/VILI; careHPV@1.0 pg/ml and careHPV@0.5 pg/ml (most effective). For once-lifetime strategies, maximum effectiveness was achieved if screening occurred between 35-50 years. Assuming a participation rate of ~70%, once-lifetime screening at age 35 years would reduce cancer mortality by 8% (for VIA) to 12% (for careHPV@0.5) over the long term, with a CER of US$557 (for VIA) to $959 (for careHPV@1.0) per life year saved (LYS) compared to no intervention; referenced to a 2008 GDP per capita in Shanxi Province of $2,975. Correspondingly, regular screening with an age-standardised participation rate of 62% (which has been shown to be achievable in this setting) would reduce cervical cancer mortality by 19-28% (for 10-yearly screening) to 43-54% (using IARC-recommended intervals), with corresponding CERs ranging from $665 (for 10-yearly VIA) to $2,269 (for IARC-recommended intervals using careHPV@1.0) per LYS. Conclusions This modelled analysis suggests that primary careHPV screening compares favourably to visual inspection screening methodologies in rural China, particularly if used as part of a regular screening program.
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- 2011
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16. Cost-effectiveness of current and optimal treatment for adult asthma
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Kristy Sanderson, Gavin Andrews, Leonardo Simonella, and Guy B. Marks
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Adult ,medicine.medical_specialty ,Multivariate analysis ,Cost effectiveness ,Cost-Benefit Analysis ,Population ,Psychological intervention ,Environmental health ,parasitic diseases ,Internal Medicine ,medicine ,Humans ,Anti-Asthmatic Agents ,education ,health care economics and organizations ,Asthma ,education.field_of_study ,Cost–benefit analysis ,business.industry ,Optimal treatment ,Australia ,Reproducibility of Results ,Health Care Costs ,medicine.disease ,Surgery ,Years of potential life lost ,Treatment Outcome ,Multivariate Analysis ,Linear Models ,business ,Monte Carlo Method - Abstract
Background: This article is part of a project to determine the cost-effectiveness of averting the burden of disease. We used population data to investigate the costs and benefits of allocating resources to optimal treatment for asthma in adults, using a burden of disease framework. Methods: We calculated the population burden of asthma in the absence of any treatment as years lived with disability (YLD), ignoring the years of life lost. We then estimated the proportion of burden averted with current interventions, the proportion that could be averted with optimally implemented current evidence-based guidelines and the direct treatment cost-effectiveness ratio in $A per YLD averted for both current and optimal treatment. Results: The direct treatment cost of current treatment of adult asthma in Australia was $A452 million and averted 25% of the burden with a cost-effectiveness ratio of $A14 000/YLD averted. Optimal treatment and optimal compliance would cost $A627 million and avert 69% of the burden with a cost-effectiveness ratio of $A7000/YLD averted. Conclusion: Implementation of optimal treatment for asthma is affordable, will be more cost-effective and will significantly decrease disability. © 2006 Royal Australasian College of Physicians.
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- 2006
17. Evidence-based medicine is affordable: the cost-effectiveness of current compared with optimal treatment in rheumatoid and osteoarthritis
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Gavin, Andrews, Leonardo, Simonella, Helen, Lapsley, Kristy, Sanderson, and Lyn, March
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Arthritis, Rheumatoid ,Evidence-Based Medicine ,Antirheumatic Agents ,Cost-Benefit Analysis ,Osteoarthritis ,Australia ,Humans ,Health Care Costs ,Models, Econometric - Abstract
To determine the cost-effectiveness of averting the burden of disease. We used secondary population data and metaanalyses of various government-funded services and interventions to investigate the costs and benefits of various levels of treatment for rheumatoid arthritis (RA) and osteoarthritis (OA) in adults using a burden of disease framework.Population burden was calculated for both diseases in the absence of any treatment as years lived with disability (YLD), ignoring the years of life lost. We then estimated the proportion of burden averted with current interventions, the proportion that could be averted with optimally implemented current evidence-based guidelines, and the direct treatment cost-effectiveness ratio in dollars per YLD averted for both treatment levels.The majority of people with arthritis sought medical treatment. Current treatment for RA averted 26% of the burden, with a cost-effectiveness ratio of dollar 19,000 per YLD averted. Optimal, evidence-based treatment would avert 48% of the burden, with a cost-effectiveness ratio of dollar 12,000 per YLD averted. Current treatment of OA in Australia averted 27% of the burden, with a cost-effectiveness ratio of dollar 25,000 per YLD averted. Optimal, evidence-based treatment would avert 39% of the burden, with an unchanged cost-effectiveness ratio of dollar 25,000 per YLD averted.While the precise dollar costs in each country will differ, the relativities at this level of coverage should remain the same. There is no evidence that closing the gap between evidence and practice would result in a drop in efficiency.
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- 2006
18. Erratum to: The impact of a two- versus three-yearly cervical screening interval recommendation on cervical cancer incidence and mortality: an analysis of trends in Australia, New Zealand, and England
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Leonardo Simonella and Karen Canfell
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Cancer Research ,Oncology - Published
- 2013
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19. Type-specific oncogenic human papillomavirus infection in high grade cervical disease in New Zealand
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Collette Bromhead, Leonardo Simonella, Harold Neal, Megan Smith, Hazel Lewis, and Karen Canfell
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trends ,Adult ,medicine.medical_specialty ,HPV ,Genotype ,Uterine Cervical Neoplasms ,Disease ,Adenocarcinoma ,methods ,Medical microbiology ,Internal medicine ,Cytology ,Prevalence ,Medicine ,cancer ,Humans ,Women ,Human papillomavirus ,Cervical Intraepithelial Neoplasia ,Aged ,Gynecology ,Human papillomavirus 16 ,Cervical screening ,Human papillomavirus 18 ,business.industry ,Research ,screening ,Vaccination ,Papillomavirus Infections ,Type specific ,HPV infection ,cervical ,Australia ,Middle Aged ,medicine.disease ,Uterine Cervical Dysplasia ,female genital diseases and pregnancy complications ,Infectious Diseases ,High Grade Cervical Intraepithelial Neoplasia ,epidemiology ,Female ,Other ,business ,Cancer Type - Cervical Cancer ,Early Detection, Diagnosis, and Prognosis - Technology and/or Marker Testing in a Clinical Setting ,Research Article ,New Zealand - Abstract
BACKGROUND: The national Human Papillomavirus (HPV) Immunisation Programme in New Zealand was introduced in 2008, and involves routine vaccination of girls 12-13 years with a catch-up for females aged up to 19 years. The aims of this study were to measure the pre-vaccination prevalence of oncogenic HPV infection in women aged 20-69 years who were participating in the New Zealand National Cervical Screening Programme (NZ-NCSP) and who were: (1) referred with high grade cytology with a subsequent histologically-confirmed high grade cervical intraepithelial neoplasia (CIN2/3) or adenocarcinoma in situ (AIS); or (2) were in the wider group of women who had a cytological prediction of high grade squamous disease or glandular abnormality (ASC-H/ HSIL+/AGC/AIS). METHODS: Women aged 20-69 years appearing on the NZ-NCSP register between August 2009-February 2011 with a cytology record of ASC-H/HSIL+/AGC/AIS were invited to participate in the study. Liquid-based cytology specimens were tested for 37 HPV types using Linear Array genotyping. The prevalence of type-specific HPV infection was reported within women with histologically-confirmed CIN 2/3 and within the wider group with ASC-H/HSIL+/AGC/AIS cytology. Age-specific trends for the relative proportion of HPV 16/18 vs. other oncogenic types in CIN2/3 were assessed. RESULTS: A total of 594 women with ASC-H/HSIL+/AGC/AIS cytology and a valid HPV test were recruited; of these 356 (60%) had confirmed CIN2/3 and 6 (1%) had confirmed AIS or glandular dysplasia. Positivity rates for any oncogenic HPV infection and for HPV16 and/or 18 within confirmed CIN2/3-AIS were 95% (95%CI: 92-97%) and 60% (54-65%) respectively; in all women with ASC-H/HSIL+/AGC/AIS cytology it was 87% (84-89%) and 53% (49-57%), respectively. The most common reported HPV types in women with CIN 2/3 were 16 (51%), 52 (19%), 31 (17%), 33 (13%) and 18 (12%). A trend for higher rates of HPV 16/18 infection compared to other oncogenic types was observed in younger women (p=0.0006). CONCLUSIONS: The prevalence of HPV 16/18 in confirmed high grade disease in New Zealand is comparable to that observed in Australia and European countries. Test positivity rates for type 52 appear higher than in comparable studies in other developed countries. A greater proportion of high grade lesions in younger women appear to be associated with HPV 16/18 infection
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- 2013
20. Post-surgical pathology reporting of thyroid cancer in New South Wales, Australia
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Clare Kahn, Leonardo Simonella, Mark Sywak, Steven Boyages, Owen Ung, and Dianne O'Connell
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Endocrinology ,Endocrinology, Diabetes and Metabolism - Published
- 2012
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21. B6-02: Patterns of lung cancer care in NSW, Australia
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Rajah Supramaniam, Shalini K Vinod, Geoff P. Delaney, Danielle Miller, Bruce K. Armstrong, Leonardo Simonella, Michael Boyer, Dianne L. O'Connell, and Leslie McCawley
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Pulmonary and Respiratory Medicine ,Oncology ,medicine.medical_specialty ,business.industry ,Internal medicine ,medicine ,Lung cancer ,medicine.disease ,business - Published
- 2007
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22. Evaluation of primary HPV-DNA testing in relation to visual inspection methods for cervical cancer screening in rural China: an epidemiologic and cost-effectiveness modelling study.
- Author
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Ju-Fang Shi, Karen Canfell, Jie-Bin Lew, Fang-Hui Zhao, Rosa Legood, Yan Ning, Leonardo Simonella, Li Ma, Yoon-Jung Kang, Yong-Zhen Zhang, Megan A Smith, Jun-Feng Chen, Xiang-Xian Feng, and You-Lin Qiao
- Subjects
CERVICAL cancer ,PAPILLOMAVIRUSES ,DNA ,WOMEN'S sexual behavior - Abstract
Background: A new lower-cost rapid-throughput human papillomavirus (HPV) test (careHPV, Qiagen, Gaithersburg, USA) has been shown to have high sensitivity for the detection of high grade cervical intraepithelial neoplasia. Methods: We assessed the outcomes and cost-effectiveness of careHPV screening in rural China, compared to visual inspection with acetic acid, when used alone (VIA) or in combination with Lugol's iodine (VIA/VILI). Using data on sexual behaviour, test accuracy, diagnostic practices and costs from studies performed in rural China, we estimated the cost-effectiveness ratio (CER) and associated lifetime outcomes for once-lifetime and twice-lifetime screening strategies, and for routine screening at 5-yearly, 10-yearly and IARC-recommended intervals. The optimal age range for once-lifetime screening was also assessed. Results: For all strategies, the relative ordering of test technologies in reducing cervical cancer incidence and mortality was VIA (least effective); VIA/VILI; careHPV@1.0 pg/ml and careHPV@0.5 pg/ml (most effective). For oncelifetime strategies, maximum effectiveness was achieved if screening occurred between 35-50 years. Assuming a participation rate of ~70%, once-lifetime screening at age 35 years would reduce cancer mortality by 8% (for VIA) to 12% (for careHPV@0.5) over the long term, with a CER of US$557 (for VIA) to $959 (for careHPV@1.0) per life year saved (LYS) compared to no intervention; referenced to a 2008 GDP per capita in Shanxi Province of $2,975. Correspondingly, regular screening with an age-standardised participation rate of 62% (which has been shown to be achievable in this setting) would reduce cervical cancer mortality by 19-28% (for 10-yearly screening) to 43-54% (using IARC-recommended intervals), with corresponding CERs ranging from $665 (for 10-yearly VIA) to $2,269 (for IARC-recommended intervals using careHPV@1.0) per LYS. Conclusions: This modelled analysis suggests that primary careHPV screening compares favourably to visual inspection screening methodologies in rural China, particularly if used as part of a regular screening program. [ABSTRACT FROM AUTHOR]
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- 2011
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23. Pre-vaccination type-specific HPV prevalence in confirmed cervical high grade lesions in the Māori and non-Māori populations in New Zealand
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Hazel Lewis, Karen Canfell, Harold Neal, Leonardo Simonella, Yoon-Jung Kang, Megan Smith, and Collette Bromhead
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Prevention - Vaccines ,Adult ,medicine.medical_specialty ,Native Hawaiian or Other Pacific Islander ,Ethnic group ,Uterine Cervical Neoplasms ,Cervical intraepithelial neoplasia ,Indigenous populations ,White People ,Young Adult ,Internal medicine ,medicine ,Prevalence ,Humans ,Vaccine impact ,Papillomavirus Vaccines ,Young adult ,Aged ,HPV vaccine ,Gynecology ,Cervical cancer ,Human papillomavirus 16 ,Cervical screening ,Human papillomavirus 18 ,business.industry ,Papillomavirus Infections ,Vaccination ,HPV infection ,Middle Aged ,medicine.disease ,Uterine Cervical Dysplasia ,female genital diseases and pregnancy complications ,Infectious Diseases ,Tropical medicine ,Female ,Squamous Intraepithelial Lesions of the Cervix ,business ,Cancer Type - Cervical Cancer ,New Zealand ,Research Article - Abstract
Background New Zealand initiated HPV vaccination in 2008, and has attained 3-dose coverage of ~50 % in 12–13 year old girls. Due to the success of program initiatives in Māori girls, higher coverage rates of ~60 % have been achieved in this group. We have previously reported a benchmark overall pre-vaccination prevalence of oncogenic HPV infection in high grade cervical lesions in New Zealand. The current extended analysis provides separate pre-vaccination benchmark prevalence for Māori and non-Māori women. Methods The National Cervical Screening Programme Register (NCSP-R) was used to identify any woman aged 20–69 years of age with an index high grade cytology report from 2009–2011. Extended recruitment was performed until 2012 in clinics with a high proportion of Māori women. Ethnicity status was based on self-reported information by participating women through phone contact supplemented by recordings on the study questionnaire (the NCSP-R was not used to extract ethnicity status). A total of 730 women consented to participate and had a valid HPV test result; 418 of these had histologically-confirmed cervical intraepithelial neoplasia (CIN) 2/3 lesions (149 Māori, 269 non-Māori). The prevalence of any cervical oncogenic HPV infection, HPV16, and HPV18 was calculated in women with CIN2/3. Results In confirmed CIN2/3, the prevalence of any oncogenic HPV, HPV16 and HPV18 was 96 % (95 % CI:91–99 %), 54 % (95 % CI:46–63 %), 11 % (95 % CI:7–18 %) in Māori and 96 % (95 % CI:93–98 %), 54 % (95 % CI:48–60 %), 11 % (95 % CI:7–15 %) in non-Māori women, respectively. Age-specific patterns of infection for HPV16/18 in confirmed CIN2/3 differed between the two groups (Pinteraction = 0.02), with a lower prevalence in younger vs. older Māori women (57 % in 20–29 years vs 75 % in 40–69 years) but a higher prevalence in younger vs. older non-Māori women (70 % in 20–29 years vs 49 % in 40–69 years); the difference in the age-specific patterns of infection for HPV16/18 was not significant either when considering confirmed CIN2 alone (p = 0.09) or CIN3 alone (p = 0.22). Conclusions The overall prevalence of vaccine-included types in CIN2/3 was similar in Māori and non-Māori women, implying that the long-term effects of vaccination will be similar in the two groups. Electronic supplementary material The online version of this article (doi:10.1186/s12879-015-1034-5) contains supplementary material, which is available to authorized users.
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24. A survey of population-based utility scores for cervical cancer prevention
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Leonardo Simonella, Karen Canfell, Kirsten Howard, Simonella, L, Howard, Kirsten, and Canfell, K
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Adult ,medicine.medical_specialty ,economic evaluation ,Population ,Uterine Cervical Neoplasms ,Context (language use) ,Disease ,General Biochemistry, Genetics and Molecular Biology ,Young Adult ,Humans ,Medicine ,cervical screening ,Health state utilities ,Young adult ,education ,Cancer Control, Survivorship, and Outcomes Research - Health Services, Economic and Health Policy Analyses ,Aged ,Cervical cancer ,Colposcopy ,Gynecology ,Medicine(all) ,education.field_of_study ,HPV vaccination ,Cervical screening ,medicine.diagnostic_test ,business.industry ,Biochemistry, Genetics and Molecular Biology(all) ,Data Collection ,HPV screening ,General Medicine ,Middle Aged ,medicine.disease ,Economic evaluation ,3. Good health ,Vaccination ,health state utilities ,Female ,business ,Research Article ,Demography ,Cancer Type - Cervical Cancer - Abstract
Background With human papillomavirus (HPV) vaccination introduced in a number of countries, there is considerable interest in evaluating the cost-effectiveness of HPV testing as the primary cervical screening test in these settings. However, the availability of utility scores for these newer interventions is limited. Our aim in this paper is to present utility scores for HPV vaccination, HPV testing and cytology based screening states among women targeted for cervical screening. Methods We invited a random sample of women targeted for cervical screening (aged 20-69 years) living in Sydney, Australia, to participate in a face-to-face interview. Participants were asked to indicate preferences (rank and utility scores) for 10 hypothetical health states relating to HPV vaccination, cytology and primary HPV screening, cervical precursor disease and early stage cervical cancer. Preferences for hypothetical health states were measured through ranking then a two-stage standard gamble. Each participant’s own health state was measured as a utility score using the EQ5D. Potential differences by age were assessed using the Wilcox Rank Sum test. Results A maximum of 276 women were contacted, of which 43 (mean age 49 years) agreed to be interviewed (15.6%). The overall health state of women as measured by the EQ5D was 0.86 (95% CI: 0.83-0.89). Of the 10 health states, the highest ranked were ‘normal cytology’ and ‘HPV vaccination’ (equal 1st). States involving an HPV positive result with a subsequent normal cytology or colposcopy were ranked below those for low grade cytological abnormalities with or without a subsequent colposcopic normal result (ranks 3-4 vs. 4-5). However, mean utility scores were broadly similar for all health states, except cervical cancer. No significant differences in scores were identified between age groups. Conclusion Our survey suggests health states relating to HPV testing are ranked below ‘low grade cytology’ disease abnormalities. However, this difference was minimal on the utility scale, as most values for health states were largely clustered. These results provide a preliminary set of non-clinic population-based utilities that may be used with other values to explore the economic implications of introducing HPV testing as a primary screening tool in the context of HPV vaccination. Electronic supplementary material The online version of this article (doi:10.1186/1756-0500-7-899) contains supplementary material, which is available to authorized users.
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