11 results on '"Wong WHM"'
Search Results
2. Cost-effectiveness analysis of trastuzumab emtansine for second-line treatment of HER2+ advanced breast cancer in Singapore.
- Author
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Wong WHM, Ng R, Aziz MIA, Ong BS, and Ng K
- Abstract
Objective: To evaluate the cost-effectiveness of trastuzumab emtansine (T-DM1) compared to both lapatinib plus capecitabine (lapcap) and trastuzumab plus capecitabine (trascap) for treating human epidermal growth factor 2-positive advanced breast cancer patients, who have received prior treatment with trastuzumab and a taxane, in Singapore., Research Design and Methods: A three-state partitioned survival model was used to evaluate the cost-effectiveness from the local healthcare system perspective. Key effectiveness data, including progression-free survival and overall survival from the pivotal EMILIA trial, were used alongside local clinician inputs. Health state utilities (in quality-adjusted life years [QALYs]) were obtained from the literature and direct medical costs obtained from the public health institutions in Singapore. Scenario, one-way, and probabilistic sensitivity analyses were conducted to explore the impact of uncertainties on cost-effectiveness., Results: The base-case incremental cost-effectiveness ratios (ICERs) for T-DM1, compared to lapcap and trascap, were S$472,600 and S$495,200 per QALY gained, respectively. Sensitivity and scenario analyses showed high ICERs, with a 50% price reduction for T-DM1 resulting in an ICER above S$200,000., Conclusion: At current prices, T-DM1 is unlikely to be a cost-effective use of Singapore's limited healthcare budget. These findings can help inform policymakers, alongside other considerations, on funding decisions.
- Published
- 2025
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3. Burnout, anxiety and depression in healthcare workers during the early COVID-19 period in Singapore.
- Author
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Teo I, Sung SC, Cheung YB, Wong WHM, Abu Bakar Aloweni F, Ang HG, Ayre TC, Chai-Lim C, Chen R, Heng AL, Nadarajan GD, Ong MEH, Soh CR, Tan BH, Tan KBK, Tan BS, Tan MH, Tan PH, Tay KXK, Wijaya L, and Tan HK
- Subjects
- Humans, Singapore epidemiology, Depression epidemiology, Anxiety epidemiology, Burnout, Psychological, Health Personnel, COVID-19 epidemiology, Burnout, Professional epidemiology
- Published
- 2024
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4. Understanding the Organometallic Step: SO 2 Insertion into Bi(III)-C(Ph) Bond.
- Author
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Wong WHM, Guo X, Chan HT, Yang T, and Lin Z
- Abstract
Heavier main-group element-catalyzed reactions provide an increasingly attractive tool to perform transformations mimicking the behaviors of transition metal catalysts. Recently, Magre and Cornella reported a Bi-catalyzed synthesis of aryl sulfonyl fluorides, which involves a fundamental organometallic step of SO
2 insertion into the Bi-Ph bond. Our theoretical studies reveal that i) the ability of hypervalent coordination of the Bi(III) center allows facile coordination sphere expansion for the SO2 coordination via one oxygen atom; and ii) the high polarity of the Bi-Ph bond makes the Ph migration from the Bi(III) center feasible. These features enable the heavier main group element to resemble the transition metal having flexibility for ligand association and dissociation. Furthermore, iii) the available π electron pair of the migrating Ph group stabilizes the SO2 insertion transition state by maintaining interaction with the Bi(III) center during migration. The insight helps us better understand the heavier main-group catalysis., (© 2023 Wiley-VCH GmbH.)- Published
- 2023
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5. Advanced Cancer Patients' Prognostic Awareness and Its Association With Anxiety, Depression and Spiritual Well-Being: A Multi-Country Study in Asia.
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Ozdemir S, Ng S, Wong WHM, Teo I, Malhotra C, Mathews JJ, Joad ASK, Hapuarachchi T, Palat G, Tuong PN, Bhatnagar S, Ning X, and Finkelstein EA
- Subjects
- Anxiety, Humans, India epidemiology, Prognosis, Quality of Life psychology, Depression epidemiology, Depression psychology, Neoplasms therapy
- Abstract
Aims: The associations between prognostic awareness, acceptance of illness and psychological outcomes (anxiety, depression and spiritual well-being) remain unclear. This study examined the associations between prognostic awareness and various psychological outcomes and how they can be moderated by patient acceptance of illness (cancer)., Materials and Methods: In total, 1184 patients with stage IV solid cancer were recruited at major public hospitals across four Asian countries (China, India, Sri Lanka, Vietnam). Prognostic awareness and acceptance of illness were assessed through self-reported understanding of treatment intent and acceptance of illness, respectively. Anxiety and depression were assessed using the Hospital Anxiety and Depression Scale, whereas spiritual well-being was measured using the Functional Assessment of Chronic Illness Therapy - Spiritual Well-Being Scale. Multivariate regressions were used to estimate the associations while controlling for patient characteristics., Results: Compared with being unaware of their prognosis (i.e. believing that their cancer is curable), being aware or unsure of their prognosis was associated with higher anxiety and depressive symptoms, and lower spiritual well-being scores. Acceptance of illness moderated these relationships and improved the psychological outcomes., Conclusions: The results suggest that disclosure of prognostic information should be provided in conjunction with psychological interventions that focus on acceptance of illness., (Copyright © 2021 The Royal College of Radiologists. Published by Elsevier Ltd. All rights reserved.)
- Published
- 2022
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6. Parturients' Stated Preferences for Labor Analgesia: A Discrete Choice Experiment.
- Author
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Ozdemir S, Chen T, Tan CW, Wong WHM, Tan HS, Finkelstein EA, and Sng BL
- Abstract
Objective: The objective was to investigate the extent to which treatment benefits, risks and costs affected parturients' preferences for labor analgesia., Methods: We recruited 248 healthy parturients prior to labor at an antenatal ward and administered a discrete choice experiment survey. Parturients were asked to choose among four hypothetical forms of labor analgesia: epidural analgesia, pethidine, Entonox and no analgesia, which were defined by: pain score, duration of second stage of labor, risks of instrumental delivery, back pain and permanent nerve injury, and out-of-pocket cost. We used mixed logit model to calculate the relative importance of each attribute (out of 100)., Results: Parturients preferred receiving labor analgesia over not receiving analgesia and those who had positive past experience with epidural preferred epidural over other modalities. Out-of-pocket cost (28%), duration of second stage of labor (26%) and pain score following treatment (18%) were the most important attributes., Conclusion: Out-of-pocket cost was a major concern. Parturients prioritized having lower pain and shorter labor experience over risks associated with epidural analgesia. Parturients should be presented with realistic range of risks of side-effects so that they can decide how to balance risks against benefits and costs associated with child labor., Competing Interests: The authors report no conflicts of interest for this work., (© 2022 Ozdemir et al.)
- Published
- 2022
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7. Anxiety and burnout among healthcare workers during the COVID-19 circuit breaker in a Women's and Children's Hospital in Singapore.
- Author
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Tewani K, Agarwal A, Wong WHM, Teo I, Tan HK, Wong WL, and Ng KC
- Abstract
Competing Interests: Conflicts of interest: All authors – none to declare.
- Published
- 2022
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8. Patient-Reported Roles in Decision-Making Among Asian Patients With Advanced Cancer: A Multicountry Study.
- Author
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Ozdemir S, Malhotra C, Teo I, Tan SNG, Wong WHM, Joad ASK, Hapuarachchi T, Palat G, Tuong PN, Bhatnagar S, Rahman R, Mariam L, Ning X, and Finkelstein EA
- Abstract
Purpose. We investigated 1) perceived roles in decision-making among advanced cancer patients in 5 Asian countries 2) associations of patient characteristics with these roles, and 3) the association of perceived roles with quality of life and perceived quality of care. Methods. We surveyed 1585 patients with stage IV solid cancer. Multinomial logistic regressions were used to analyze associations of patient characteristics with decision-making roles. Multivariate regressions were used to analyze associations of decision-making roles with quality of life and care. Results. The most common perceived-role was no patient involvement. Most patients (73%) reported roles consistent with their preferences. Being male, nonminority, higher educated, aware of advanced cancer diagnosis, and knowledge of cancer diagnosis for ≥1 year were associated with higher levels of patient involvement in decision-making. Compared to no patient involvement, joint decision-making (together with physicians/family) was associated with higher social (β = 2.49, P < 0.01) and spiritual (β = 2.64, P < 0.01) well-being, and better quality of physician communication (β = 9.73, P < 0.01) and care coordination (β = 13.96, P < 0.01) while making decisions alone was associated with lower emotional (β = -1.43, P < 0.01), social (β = -2.39, P < 0.01), and spiritual (β = -2.98, P < 0.01) well-being. Conclusions. Findings suggest that a substantial number of advanced cancer patients were not (and preferred not to be) involved in decision-making. Despite this finding, joint decision-making together with physicians/family was associated with better quality of life and care. Implications. Physicians should explain the benefits of shared decision making to patients and encourage participation in decision-making, while ensuring that patients feel supported and do not find decision-making overwhelming., Competing Interests: The author(s) declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article. The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This study was funded by the Lien Centre for Palliative Care., (© The Author(s) 2021.)
- Published
- 2021
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9. End-of-life cost trajectories and the trade-off between treatment costs and life-extension: Findings from the Cost and Medical Care of Patients with Advanced Serious Illness (COMPASS) cohort study.
- Author
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Doble B, Wong WHM, and Finkelstein E
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- Cohort Studies, Death, Humans, Singapore, Health Care Costs, Terminal Care
- Abstract
Background: Few studies have assessed how patient preferences influence end-of-life costs., Aim: To estimate mean monthly healthcare costs in 2019 Singapore Dollars (SGD) at five time points within the last year of life and identify how patients' preferences for the trade-off between treatment cost containment and life-extension and other factors affect these costs., Design: Mean monthly costs were quantified in the last 1, 3, 6, 9, and 12-months before death. Univariate and multivariate analyses were conducted., Setting/participants: Billing records for 286 deceased participants in the Cost and Medical Care of Patients with Advanced Serious Illness (COMPASS) cancer cohort study in Singapore., Results: Mean monthly costs were $5140 (95% CI: $4750; $5520) in the 12-months before death and rose to $8350 (95% CI: $7110; $9590) 1-month before death. Participants preferring higher cost containment/less life-extension defied the trend of increasing costs closer to death (mean monthly costs of $4630 (95% CI: $3690; $ 5580) and $4850 (95% CI: $2850; $6850) (12-months and 1-month before death respectively). Participants preferring lower cost containment/more life-extension had costs that were $1050 (95% CI: $49; $2051) and $5220 (95% CI: $2320; $8130) higher than those preferring lower costs/less life-extension 12-months and 1-month before death respectively., Conclusions: On average, cancer patients in Singapore can expect to spend $61,680 in the last year of life. Of broader relevance is that patient preferences and other observable factors clearly influence these costs, suggesting that policymakers and patients can better predict and budget for end-of-life costs by considering these factors.
- Published
- 2021
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10. A randomized controlled trial testing the effects of a positive front-of-pack label with or without a physical activity equivalent label on food purchases.
- Author
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Finkelstein EA, Doble B, Ang FJL, Wong WHM, and van Dam RM
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- Adult, Choice Behavior, Exercise, Food Preferences, Humans, Nutritive Value, Singapore, Consumer Behavior, Food Labeling
- Abstract
Background: Positive front-of-pack (FOP) labels, including Singapore's Healthier Choice Symbol (HCS), target a subset of healthier products whose consumption is to be encouraged. However, this may inadvertently lead to excess caloric intake, which could be addressed by including an additional label identifying calories per serving. We test this hypothesis by adding a Physical Activity Equivalent (PAE) label, an indicator of calorie content, to all products available in an on-line grocery store., Methods: We conducted a randomized controlled trial using a 3 arm within-subject crossover design in adult Singapore residents recruited online. Participants shopped once in each condition in an experimental online grocery store in random order: 1) no FOP label (Control); 2) Select products displaying HCS labels (HCS-only); 3) Condition 2 with additional information displaying PAEs per serving on every product (HCS+PAE). 117 participants were recruited and data from 317 shops were analyzed. We used first-differenced regressions to assess the impact of the conditions on calories per serving (primary) and on other measures of diet quality., Results: The HCS-only condition led to a statistically significant five-percentage point increase in the proportion of HCS products purchased (95% CI, 1%: 9%). However, neither the HCS-only (3.45; 95% CI, -12.52: 19.43) nor HCS + PAE (8.14; 95% CI, -5.25: 21.54) condition led to a change in the number of calories per serving purchased or changes in other measures of diet quality., Conclusions: Positive labels, like the HCS, are likely to increase purchases of labelled products. However, these changes may not lead to improvements in diet quality or calorie intake. Combining positive labels with additional PAE information does not appear to address this concern., (Copyright © 2020 Elsevier Ltd. All rights reserved.)
- Published
- 2021
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11. A Randomized Controlled Trial Evaluating the Relative Effectiveness of the Multiple Traffic Light and Nutri-Score Front of Package Nutrition Labels.
- Author
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Finkelstein EA, Ang FJL, Doble B, Wong WHM, and van Dam RM
- Subjects
- Adult, Caloric Restriction, Cross-Over Studies, Energy Intake, Female, Humans, Male, Recommended Dietary Allowances, Singapore, Choice Behavior, Consumer Behavior, Diet, Healthy, Feeding Behavior, Food Packaging, Nutritive Value
- Abstract
The objective of this trial was to test two promising front-of-pack nutrition labels, 1) the United Kingdom's Multiple Traffic Lights (MTL) label and 2) France's Nutri-Score (NS), relative to a no-label control. We hypothesized that both labels would improve diet quality but NS would be more effective due to its greater simplicity. We tested this hypothesis via an online grocery store using a 3 × 3 crossover (within-person) design with 154 participants. Outcomes assessed via within person regression models include a modified Alternative Healthy Eating Index (AHEI)-2010 (primary), average Nutri-Score, calories purchased, and singular measures of diet quality of purchase orders. Results show that both labels significantly improve modified AHEI scores relative to Control but neither is statistically superior using this measure. NS performed statistically better than MTL and Control based on average Nutri-Score, yet, unlike MTL it did not statistically reduce calories or sugar from beverages. This suggest that NS may be preferred if the goal is to improve overall diet quality but, because calories are clearly displayed on the label, MTL may perform better if the goal is to reduce total energy intake.
- Published
- 2019
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