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Purpose: To develop a predictive model based on Danish administrative registers to facilitate automated identification of individuals at risk of any type of cancer. Methods: A nationwide register-based cohort study covering all individuals in Denmark aged +20 years. The outcome was all-type cancer during 2017 excluding nonmelanoma skin cancer. Diagnoses, medication, and contact with general practitioners in the exposure period (2007–2016) were considered for the predictive model. We applied backward selection to all variables by logistic regression to develop a risk model for cancer. We applied the models to the validation cohort, calculated the receiver operating characteristic curves, and estimated the corresponding areas under the curve (AUC). Results: The study population consisted of 4.2 million persons; 32,447 (0.76%) were diagnosed with cancer in 2017. We identified 39 predictive risk factors in women and 42 in men, with age above 30 as the strongest predictor for cancer. Testing the model for cancer risk showed modest accuracy, with an AUC of 0.82 (95% CI 0.81–0.82) for men and 0.75 (95% CI 0.74–0.75) for women. Conclusion: We have developed and tested a model for identifying the individual risk of cancer through the use of administrative data. The models need to be further investigated before being applied to clinical practice.

Healthcare-seeking with lung cancer symptoms is a prerequisite for improving timely diagnosis of lung cancer. In this study we aimed to explore barriers to healthcare-seeking with lung cancer symptoms, and to analyse the impact of social inequality. The study is based on a nationwide survey with 69,060 individuals aged ≥40 years, randomly selected from the Danish population. Survey information on lung cancer symptoms, healthcare-seeking, and smoking status. Information about socioeconomics by linkage to Danish Registers. “Being too busy” and “Being worried about wasting the doctor’s time” were the most frequent barriers to healthcare-seeking with lung cancer symptoms. Individuals out of workforce and current smokers more often reported “Being worried about what the doctor might find” and “Being too embarrassed” about the symptoms. The social inequality in barriers to healthcare-seeking with lung cancer symptoms is noticeable, which emphasises the necessity of focus on vulnerable groups at risk of postponing relevant healthcare-seeking.

Social inequality is a significant challenge in the Danish healthcare system, and in general practice the inequality has many faces. To give more to those who need most is a difficult task, and research shows the diversity of the challenges experienced in the primary healthcare sector. However, as argued in this review, through innovative research we may be able to find new directions in how to provide patient centered healthcare, and in taking on this task general practice is centrally positioned as the place at which most patients are seen on a regular basis.

As part of improving early diagnosis of colorectal cancer (CRC), knowledge about involvement of personal and professional relations, when experiencing CRC symptoms, is important. This study aimed to analyse involvement of personal and professional relations and whether age, sex, number of symptoms and available social network are associated with involving family, non-family and professional relations amongst individuals experiencing CRC symptoms.Some, 100 000 Danes over 20 years were randomly selected and invited to a cross sectional survey comprising questions about involvement of relations regarding four predefined CRC symptoms (abdominal pain, rectal bleeding and change in stool texture and frequency).In total, 35 801 respondents over 40 years answered all relevant items and 9346 (26.1%) had experienced at least one CRC symptom in the preceding 4 weeks. Abdominal pain was more often than stool-related symptoms discussed with relations. Respondents with1 symptom had higher odds of reporting general practitioner (GP) contact compared to respondents with single symptoms. Age ≥60 years was associated with higher odds of GP contact and involving family relations. Spouse/partner was the most frequently involved relation. Involving a personal relation increased the odds of GP contact. Having an available social network decreased GP contact for some symptoms.Odds of involving professional relations, e.g. the GP, were higher amongst individuals experiencing multiple CRC symptoms and those involving personal relations. Having an available social network was associated with lower odds of GP contact, suggesting that individuals with no available social network are more prone to use their GP.

Social inequality is a significant challenge in the Danish healthcare system, and in general practice the inequality has many faces. To give more to those who need most is a difficult task, and research shows the diversity of the challenges experienced in the primary healthcare sector. However, as argued in this review, through innovative research we may be able to find new directions in how to provide patient centered healthcare, and in taking on this task general practice is centrally positioned as the place at which most patients are seen on a regular basis.

ObjectiveCoping has been suggested as a perpetuating factor for physical symptoms. The aim of this study was to examine the use of the coping strategies approach, resignation, and diversion in individuals with multiple physical symptoms according to the construct of Bodily Distress Syndrome (BDS).MethodsThis cross-sectional study was part of the nationwide web-based survey Danish Symptom Cohort (DaSC). In total, 100,000 individuals were invited to participate, and individuals eligible for the present study were respondents aged 20–64 years without a current or recent pregnancy. Multiple physical symptoms were identified using the BDS checklist, and coping was assessed by the Brief Approach/Avoidance Coping Questionnaire. Statistical analyses included descriptive statistics and multinomial and logistic regression.ResultsA total of 35,810 respondents were included in the study, of which 8512 (23.8%) fulfilled the criteria for having multiple physical symptoms. This group of respondents had lower coping scores on approach and higher coping scores on resignation and diversion compared with the non-BDS group. The regression analyses showed that high scores on approach were associated with a lower probability of having multiple symptoms (adjusted OR 0.92, 95% CI: 0.91–0.92), whereas high scores on diversion and resignation were associated with a higher probability of having multiple symptoms (adjusted OR 1.10; 95% CI: 1.09–1.11 and adjusted OR 1.19; 95% CI: 1.18–1.20, respectively).ConclusionThe study supports the hypothesis that experiencing multiple physical symptoms is associated with certain coping strategies. This is relevant knowledge for health care professionals who will be treating this patient group. ObjectiveCoping has been suggested as a perpetuating factor for physical symptoms. The aim of this study was to examine the use of the coping strategies approach, resignation, and diversion in individuals with multiple physical symptoms according to the construct of Bodily Distress Syndrome (BDS).MethodsThis cross-sectional study was part of the nationwide web-based survey Danish Symptom Cohort (DaSC). In total, 100,000 individuals were invited to participate, and individuals eligible for the present study were respondents aged 20–64 years without a current or recent pregnancy. Multiple physical symptoms were identified using the BDS checklist, and coping was assessed by the Brief Approach/Avoidance Coping Questionnaire. Statistical analyses included descriptive statistics and multinomial and logistic regression.ResultsA total of 35,810 respondents were included in the study, of which 8512 (23.8%) fulfilled the criteria for having multiple physical symptoms. This group of respondents had lower coping scores on approach and higher coping scores on resignation and diversion compared with the non-BDS group. The regression analyses showed that high scores on approach were associated with a lower probability of having multiple symptoms (adjusted OR 0.92, 95% CI: 0.91–0.92), whereas high scores on diversion and resignation were associated with a higher probability of having multiple symptoms (adjusted OR 1.10; 95% CI: 1.09–1.11 and adjusted OR 1.19; 95% CI: 1.18–1.20, respectively).ConclusionThe study supports the hypothesis that experiencing multiple physical symptoms is associated with certain coping strategies. This is relevant knowledge for health care professionals who will be treating this patient group.

Lung cancer can be challenging to diagnose in the early stages, where treatment options are optimal. We aimed to develop 1-year prediction models for the individual risk of incident lung cancer for all individuals aged 40 or above living in Denmark on 1 January 2017. The study was conducted using population-based registers on health and sociodemographics from 2007–2016. We applied backward selection on all variables by logistic regression to develop a risk model for lung cancer and applied the models to the validation cohort, calculated receiver-operating characteristic curves, and estimated the corresponding areas under the curve (AUC). In the populations without and with previously confirmed cancer, 4274/2,826,249 (0.15%) and 482/172,513 (0.3%) individuals received a lung cancer diagnosis in 2017, respectively. For both populations, older age was a relevant predictor, and the most complex models, containing variables related to diagnoses, medication, general practitioner, and specialist contacts, as well as baseline sociodemographic characteristics, had the highest AUC. These models achieved a positive predictive value (PPV) of 0.0127 (0.006) and a negative predictive value (NPV) of 0.989 (0.997) with a 1% cut-off in the population without (with) previous cancer. This corresponds to 1.2% of the screened population experiencing a positive prediction, of which 1.3% would be incident with lung cancer. We have developed and tested a prediction model with a reasonable potential to support clinicians and healthcare planners in identifying patients at risk of lung cancer.

Background Urinary incontinence (UI) is a frequently occurring condition among women and increases with age. Effective treatments exist but many women hesitate to contact their general practitioner (GP) regarding UI. Therefore, it is important to generate knowledge regarding barriers for healthcare-seeking. Several factors such as age, duration and number of symptoms are associated with healthcare-seeking. How socioeconomic status (SES) is associated with experiencing barriers for healthcare-seeking for UI has not been explored. The objectives of this study were to: (1) analyze frequencies of barriers for healthcare-seeking, and (2) investigate associations between SES and barriers for contacting the GP, among women reporting bothersome UI. Method A cross-sectional web-based questionnaire study of symptoms occurrence among 51,090 randomly selected women. This study investigates reported symptoms of three types of UI (stress UI, urge UI and UI without stress or urge) and reported barriers for GP contact combined with register data on SES. Results A total of 4,051 (16.4%) women reported to be bothered by either stress UI (9.1%), urge UI (4.0%) or incontinence without stress or urge (2.4%) and 76.3%, 70%, and 64% respectively, had not contacted their GP regarding the symptom(s). The most frequently reported barriers were ‘being too embarrassed’ (19.3%) and ‘being too busy’ (18.4%) for stress incontinence, and ‘being too embarrassed (19.0%) or ‘worried about wasting the doctor’s time’ (16.9%) for women with bothersome urge UI or UI without stress or urge. Younger women had higher odds of reporting barriers and the barriers embarrassment and being worried about what the doctor might find were significantly associated with lower educational level. Conclusion Women with lower educational level have an increased risk of not seeking healthcare for UI symptoms. The GP should be aware of identifying women bothered by UI for whom effective treatment options to alleviate the symptoms are available.

ObjectiveProton pump inhibitor (PPI) use has risen substantially, primarily driven by ongoing use over months to years. However, there is no consensus on how to define long-term PPI use. Our objectives were to review and compare definitions of long-term PPI use in existing literature and describe the rationale for each definition. Moreover, we aimed to suggest generally applicable definitions for research and clinical use.DesignThe databases PubMed and Cochrane Library were searched for publications concerning long-term use of PPIs and ClinicalTrials.gov was searched for registered studies. Two reviewers independently screened the titles, abstracts, and full texts in two series and subsequently extracted data.ResultsA total of 742 studies were identified, and 59 met the eligibility criteria. In addition, two ongoing studies were identified. The definition of long-term PPI use varied from >2 weeks to >7 years. The most common definition was ≥1 year or ≥6 months. A total of 12/61 (20%) of the studies rationalised their definition.ConclusionThe definitions of long-term PPI treatment varied substantially between studies and were seldom rationalised.In a clinical context, use of PPI for more than 8 weeks could be a reasonable definition of long-term use in patients with reflux symptoms and more than 4 weeks in patients with dyspepsia or peptic ulcer. For research purposes, 6 months could be a possible definition in pharmacoepidemiological studies, whereas studies of adverse effects may require a tailored definition depending on the necessary exposure time. We recommend to always rationalise the choice of definition.

Background A prerequisite for general practitioners (GPs) being able to refer patients with gynecological cancer alarm symptoms for further investigations is that individuals present the symptoms to the GP. Not all symptoms are presented to the GP, and knowledge of barriers for healthcare-seeking is sparse. The aim of this study was to analyze associations between age, socioeconomic status, and common barriers (“being too embarrassed”, “being too busy”, “worried about wasting the doctors time” and “worried what the GP might find”) towards GP contact with gynecological alarm symptoms. Methods Nationwide population-based study in Denmark based on a random sample of 51 090 women aged 20 years or older. A web-based questionnaire regarding experience of four predefined alarm symptoms of gynecological cancer, decisions about contact to GPs, and barriers towards GP contact was distributed. Information about socioeconomic status was collected from Statistics Denmark. Results A total of 26 466 women (54.5%) completed the questionnaire. The proportion of women with no contact to the GP varied between 64.6% and 78.1% for postmenopausal bleeding and pain during intercourse, respectively. Between 32.3% (bleeding during intercourse) and 45.3% (postmenopausal bleeding) of the women reported no barriers for GP contact. The proportions of reported barriers ranged from 7.5% for being too embarrassed (pelvic pain) to 26.8% for being too busy (bleeding during intercourse). Women aged 40–59 years had lower odds of reporting “being too embarrassed” and “worried about wasting the GP´s time”, while women aged 60 + years of age had lower odds of reporting “being too busy” compared to the youngest age group. Women in the highest income groups had lower odds of reporting “being too embarrassed” and “wasting the GP´s time” compared to those with a low income, while those with high educational level had lower odds of reporting “being too embarrassed” and “worried what the GP might find” compared to those with low educational level. Conclusions More than half of the respondents with no contact to the GP, reported one or more barriers towards GP contact. Lower age and socioeconomic status were significantly associated with higher odds of reporting barriers. As this may explain the differences in healthcare seeking behavior, healthcare planners, policy makers and clinicians should be aware of these findings.

Background Lower urinary tract symptoms (LUTS) are common among men worldwide and despite frequently of benign origin, the symptoms often influence quality of life. Most men experiencing LUTS manage their symptoms in private settings without consulting their general practitioner (GP). Therefore, the purpose of this study was to identify who in the personal and professional relations Danish men discussed their bothersome LUTS with, to analyse factors associated with discussing LUTS with personal and professional relations, and to analyse how having a social network influenced healthcare seeking. Methods A nationwide population-based, cross-sectional survey representative of the Danish population. A total of 46,647 randomly selected men aged 20+ were invited to participate. Data were collected in 2012. The main outcome measures were odds ratios between involvement of personal and professional relations, GP contact and different characteristics (age, number of symptoms, available social network, and involvement of personal relations) among men experiencing bothersome LUTS. We used multivariate logistic regression models. Results Overall, 22,297 men completed the questionnaire. Of those, 4885 (21.9%) had experienced at least one LUTS, 23.5% had not discussed their symptoms with either personal nor professional relations and 59.1% had not discussed their LUTS with any professional relation. The symptoms were most often discussed with personal relations, primarily the spouse/partner who was involved in more than half of the cases. Odds of consulting the GP, another doctor and other healthcare professionals were two to four-fold higher when the symptoms were discussed with a personal relation. Having an available social network was significantly associated with lower odds of consulting the GP regarding frequent urination. Conclusions Despite the high prevalence of bothersome LUTS more than one-fifth of men did not discuss their symptoms with either personal nor professional relations, and more than half did not discuss the symptoms with any professional relations. Discussing the symptoms with personal relations was generally associated with higher odds of seeking professional help, and for frequent urination, having an available social network was associated with lower odds of consulting the GP. The results may be useful for detecting and treating men bothered by LUTS.

ObjectivesTo identify the personal and professional relations of women experiencing gynaecological alarm symptoms, to analyse if involving a personal relation is related to healthcare-seeking with gynaecological alarm symptoms, and to analyse if having an available social network is associated with involvement of this relation.DesignWeb-based, population-based, cross-sectional questionnaire survey.SettingThe general population in Denmark.ParticipantsThe study invited 100 000 individuals randomly drawn from the Danish Civil Registration System. Pregnant women and women who did not answer relevant questions about social network were excluded. A total of 5053 women who experienced at least one gynaecological alarm symptom were included in the study.Primary and secondary outcomes(1) Personal and professional relations that women experiencing gynaecological alarm symptoms involve; (2) the association between involving a personal relation and healthcare-seeking; and (3) the association between having an available social network and involvement of this relation.ResultsThe general practitioner (GP) was the most involved professional relation, while the spouse/partner was the most involved personal relation. When experiencing gynaecological alarm symptoms, more than 50% of women did not involve a professional relation and 20% did not involve a personal relation. For all four gynaecological alarm symptoms, the odds of involving the GP were higher in the oldest age group. Women were two to seven times more likely to involve their GP if they had personal relation involvement. No statistically significant association was found between having an available social network and involving the GP.ConclusionInvolving a personal relation in healthcare-seeking was associated with increased involvement of the GP, who consequently was the most involved professional relation when experiencing gynaecological alarm symptoms. Spouse/partner was the most involved personal relation. The oldest age group had the highest odds of involving the GP. No association was found between having an available social network and involving the GP.

We aimed to firstly determine the 1-year predictive values of lung cancer alarm symptoms in the general population and to analyse the proportion of alarm symptoms reported prior to diagnosis, and secondly analyse how smoking status and reported contact with general practitioners (GPs) regarding lung cancer alarm symptoms influence the predictive values. The study was a nationwide prospective cohort study of 69,060 individuals aged ≥40 years, randomly selected from the Danish population. Using information gathered in a survey regarding symptoms, lifestyle and healthcare-seeking together with registry information on lung cancer diagnoses in the subsequent year, we calculated the predictive values and likelihood ratios of symptoms that might be indicative of lung cancer. Furthermore, we analysed how smoking status and reported contact with GPs regarding the alarm symptoms affected the predictive values. We found that less than half of the patients had reported an alarm symptom six months prior to lung cancer diagnosis. The positive predictive values of the symptoms were generally very low, even for patients reporting GP contact regarding an alarm symptom. The highest predictive values were found for dyspnoea, hoarseness, loss of appetite and for current heavy smokers. The negative predictive values were high, all close to 100%. Given the low positive predictive values, our findings emphasise that diagnostic strategies should not focus on single, specific alarm symptoms, but should perhaps focus on different clusters of symptoms. For patients not experiencing alarm symptoms, the risk of overlooking lung cancer is very low.

Background Gastroesophageal reflux disease (GERD), functional dyspepsia (FD) and irritable bowel syndrome (IBS) are common functional gastrointestinal conditions with a significant impact on daily life. The objectives were to analyse general self-rated health and self-reported functional capacity in adults meeting the criteria for GERD, FD and IBS, respectively, and in individuals who meet the criteria for more than one of the conditions. Methods A nationwide study of 100,000 individuals aged 20 years and above, randomly selected in the general Danish population. A web-based questionnaire survey formed the basis of this study. Questions regarding FD and IBS were extracted from the ROME III adult questionnaire. Questions regarding GERD were developed based on the Montreal definition. Self-rated health and functional capacity was measured by single global questions. Results Respondents meeting the criteria for either GERD, FD or IBS have significantly higher odds of reporting poor self-rated health and impaired functional capacity compared to individuals not experiencing these functional gastrointestinal conditions. Furthermore, respondents with overlapping gastrointestinal (GI) symptom complexes have significantly higher odds of reporting poor self-rated health and impaired functional capacity compared to respondents with symptoms compatible with only one of the symptom complexes. Conclusions This study demonstrates that individuals experiencing symptoms of GERD, FD or IBS report poor self-rated health as well as impaired functional capacity. The impact on self-rated health and functional capacity is highest among individuals experiencing overlapping symptoms of GERD, FD and IBS. Electronic supplementary material The online version of this article (doi:10.1186/s12876-017-0622-9) contains supplementary material, which is available to authorized users.

OBJECTIVE: Multiple physical symptoms not attributable to known organic disease are common in all medical fields and associated with major personal and social consequences. This study investigated multiple physical symptoms according to the construct of bodily distress syndrome (BDS) and associated individual characteristics in the general adult population.METHODS: A nationwide, population-based study of 100,000 randomly selected individuals aged 20 years and older, conducted in 2012. A web-based questionnaire formed the basis of the study and was combined with Danish national registry data on socioeconomic factors and medication and healthcare use.RESULTS: 49,706 individuals completed the questionnaire. After exclusion of women indicating pregnancy, respondents reporting chronic disease and respondents over 65 years of age, 23,331 remained for analysis. Of these 23,331 individuals, 15.5% fulfilled the criteria for BDS. BDS positives were more often younger (20-40 years) and female. Self-rated health and self-reported functional capacity were impaired among these individuals. Fulfilling the BDS criteria was significantly associated with current or former smoking, overweight and obesity, low educational level and income, and unemployment. Moreover, individuals with BDS were more often from ethnic minorities and had higher use of healthcare and medication.CONCLUSION: Multiple physical symptoms, as captured by the concept of BDS, are common in the general adult population, especially among younger women. Fulfilling the BDS criteria is associated with substantial negative impact on self-perceived health and socioeconomic parameters. Fulfilling BDS criteria is positively associated with health risk behaviors (smoking, overweight and obesity) and higher use of healthcare and medication.

ObjectivesTo determine the proportion of contacts to general practitioner (GP) with recent onset gynaecological cancer alarm symptoms (pelvic pain, postmenopausal bleeding, bleeding during intercourse or pain during intercourse) and to analyse the associations between lifestyle factors, socioeconomic status and GP contact for these symptoms.DesignCross-sectional survey combined with data from national registers.SettingThe general Danish population.ParticipantsA total of 25 866 non-pregnant women ≥20 years completed the survey. Women reporting at least one of four gynaecological alarm symptoms within the preceding 6 months form the study base (n=2957).ResultsThe proportion of women reporting GP contact ranged from 21.1% (pain during intercourse) to 32.6% (postmenopausal bleeding). Women aged 60+ years had higher odds of reporting GP contact for at least one of the four gynaecological cancer alarm symptoms compared with those aged 20–39 years (OR 2.56, 95% CI 1.69 to 3.89), and immigrants had higher odds of reporting GP contact for at least one of the symptoms (OR 1.56, 95% CI 1.13 to 2.15) compared with ethnic Danish individuals. Among those reporting postmenopausal bleeding and/or bleeding during intercourse, women in the age group 60+ years had higher odds of reporting GP contact compared with those aged 20–39 years (OR 2.79, 95% CI 1.33 to 5.87). A high educational level (>12 years) was positively associated with reporting GP contact for postmenopausal bleeding and/or bleeding during intercourse compared with a low educational level (ConclusionsFew women contacted their GP with recent onset gynaecological cancer alarm symptoms. Higher age, being immigrant and higher educational level increased the odds of GP contact. Future studies should explore the reasons for these findings as this may aid in prompting early diagnosis and thereby improve the prognosis of gynaecological cancer.

Background: Alarm symptoms are used in many cancer referral guidelines. The objectives were to determine the 1-year predictive values (PVs) of colorectal cancer (CRC) alarm symptoms in the general population and to describe the proportion of alarm symptoms reported prior to diagnosis. Methods: A nationwide prospective cohort of 69,060 individuals ≥40 years randomly selected from the Danish population was invited to complete a survey regarding symptoms and healthcare-seeking in 2012. Information on CRC diagnoses in a 12-month follow-up came from the Danish Cancer Registry. PVs and positive and negative likelihood ratios were calculated. Results: A total of 37,455 individuals participated (response rate 54.2%). Sixty-four individuals were diagnosed with CRC. The single symptom with the highest positive PVs (PPV) and LR+ was rectal bleeding. PPVs were generally higher among individuals aged ≥75 years and highest among those reporting at least one specific alarm symptom that led to a GP contact. Conclusion: In general, the PPVs of CRC alarm symptoms are low and the NPVs high, especially in the youngest age groups. The LR + show a relative association with specific symptoms like rectal bleeding. Future campaigns on early diagnosis of CRC should focus on healthcare-seeking when experiencing rectal bleeding and target older people with the highest incidence.

BACKGROUND: Survival rates for upper gastrointestinal (GI) cancer are poor since many are diagnosed at advanced stages. Fast track endoscopy has been introduced to prompt diagnosis for patients with alarm symptoms that could be indicative of upper GI cancer. However, these symptoms may represent benign conditions and little is known about the predictive values of alarm symptoms of upper GI cancer in the general population.METHODS: The study is a nationwide cohort study of 60,562 individuals aged 45 years or above randomly selected from the Danish general population. Participants were invited to complete a survey comprising of questions on several symptom experiences, including alarm symptoms for upper GI cancer within the past four weeks. The participants were asked about specific symptoms (repeated vomiting, difficulty swallowing, signs of upper GI bleeding or persistent and recent-onset abdominal pain) and non-specific symptoms (nausea, weight loss, loss of appetite, feeling unwell and tiredness). We obtained information on upper GI cancer diagnosed in a 12-month period after completing the questionnaire from the Danish Cancer Registry. We calculated positive predictive values and positive likelihood ratios for the association between alarm symptom and subsequent upper GI cancer.RESULTS: A total of 33,040 individuals above 45 years completed the questionnaire, yielding a response rate of 54.6%. Respondents were fairly respresentative of the study sample. During the follow-up period, 18 people were diagnosed with upper GI cancer. The number of incident cancers was similar among eligible non-respondents. Two thirds of the respondents with an upper GI malignancy had experienced one or more alarm symptoms. The positive predictive value for being diagnosed with upper GI cancer after reporting a least one alarm symptom was 0.1% (95% CI:0.0-0.1%). The positive likelihood ratio was 4.4 for specific alarm symptoms and 1.1 for non-specific alarm symptoms.CONCLUSIONS: We found that positive predictive values of alarm symptoms of upper GI cancer experienced in the general population are low. It is important knowledge that despite denoted alarm symptoms even patients with specific alarm symptoms of upper GI cancer have a low risk of being diagnosed with upper GI cancer.

Introduction. In order to develop strategies to prevent delay in diagnosis, it is important to gain knowledge of symptoms and healthcare-seeking processes in the population. This paper describes a combined survey and register-based study with (1) focus on development of a questionnaire concerning experience of symptoms and subsequent consequences and (2) feasibility of the study.Methods. The study is a nationwide cohort study of 100 000 individuals randomly selected from the Danish general population. A comprehensive questionnaire concerning experience of symptoms and subsequent consequences was developed. The methodological framework for the development included defining the domains to be measured, identification of previous items, scales and questionnaires in the literature, and pilot and field testing.Results. A total of five domains and 16 subdomains were defined covering the area of symptom experience, symptom characteristics, reaction in response to symptom experience, external factors, and personality characteristics with potential influence on the symptom experience. In total, 49 706 questionnaires were completed, yielding a response rate of 52.2%.Conclusion. We developed a comprehensive questionnaire used in a large combined survey and register-based study concerning experience of symptoms and subsequent consequences of symptom experiences. We succeeded in conducting a large survey providing the groundwork for The Danish Symptom Cohort.

Background: Suggestions of overprescribing of proton pump inhibitors (PPIs) for long-term treatment in primary care have been raised. This study aims to analyse associations between general practice characteristics and initiating long-term treatment with PPIs. Methods: A nationwide register-based cohort study of patients over 18 years redeeming first-time prescription for PPI issued by a general practitioner in Denmark in 2011. Patients redeeming more than 60 defined daily doses (DDDs) of PPI within six months were defined first-time long-term users. Detailed information on diagnoses, concomitant drug use and sociodemography of the cohort was extracted. Practice characteristics such as age and gender of the general practitioner (GP), number of GPs, number of patients per GP, geographical location and training practice status were linked to each PPI user. Logistic regression analysis was used to determine associations between practice characteristics and initiating long-term prescribing of PPIs. Results: We identified 90 556 first-time users of PPI. A total of 30 963 (34.2 %) met criteria for long-term use at six months follow-up. GPs over 65 years had significantly higher odds of long-term prescribing (OR 1.32, CI 1.16-1.50), when compared to younger GPs (

INTRODUCTION: Survival of upper gastrointestinal (GI) cancer depends on early stage diagnosis. Symptom-based guidelines and fast-track referral systems have been implemented for use in general practice. To improve diagnosis of upper GI cancer, knowledge on prevalence of alarm symptoms in the general population and subsequent healthcare-seeking is needed.MATERIAL AND METHODS: A nationwide study of 100,000 adults, who were randomly selected from the general population were invited to participate in an internet-based survey. People aged ≥45 years were included in this study. Items regarding experience of specific and nonspecific alarm symptoms of upper GI cancer within the preceding 4 weeks and contact to general practitioner (GP) were included.RESULTS: Of the 60,562 subjects aged ≥45 years, 33,040 (54.6%) completed the questionnaire. The prevalence of the specific alarm symptoms ranged between 1.1% ("repeated vomiting") and 3.4% ("difficulty swallowing"). Women had higher odds of experiencing "repeated vomiting" and "persistent and recent-onset abdominal pain", but lower odds of experiencing "upper GI bleeding". The proportion of people contacting their GP with each of the four specific alarm symptoms ranged from 24.3% ("upper GI bleeding") to 39.9% ("repeated vomiting"). For each combination of two specific alarm symptoms, at least 52% contacted their GP.CONCLUSION: The specific alarm symptoms of upper GI cancer are not very prevalent in the general population. The proportion of GP contacts with each of the four specific symptoms varied between 24.3% and 39.9%. The proportion of GP contacts was higher in the older age and with combinations of two symptoms.

Introduction. Gastroesophageal reflux disease (GERD), functional dyspepsia (FD) and irritable bowel syndrome (IBS) are common functional gastrointestinal conditions with significant impact on the daily lives of individuals. The objective was to investigate the prevalence and overlap of the three conditions in a Western general population. Material and methods. A nationwide study of 100,000 individuals 20 years and above, randomly selected in the general population. A web-based questionnaire survey formed the basis of this study. Questions regarding FD and IBS were extracted from the ROME III adult questionnaire. Questions regarding GERD were developed based on the Montreal definition. Prevalence estimates for GERD, FD IBS were calculated in total and for each sex separately and for four age groups. A Venn diagram was constructed, illustrating the overlap between the three conditions. Results. The overall response rate was 52.2%. The prevalence of GERD, FD and IBS was 11.2%, 7.7% and 10.5%, respectively, and overlap between two or three of these conditions was seen among 6.5% of the respondents. Among individuals meeting the criteria of one or more of the conditions GERD, FD and IBS, 30.7% had overlap between two or all three conditions. Conclusion. GERD, FD and IBS are common conditions in the general population and the overlap between these conditions is also quite common. When diagnosing patients with GERD, FD and IBS, physicians should keep in mind that these patients could be suffering from more than one of these conditions.

Background: Guideline and reimbursement modifications have been introduced to optimize prescribing of antisecretory medication in Danish general practice. Impacts of the interventions have not been evaluated. Objectives: To analyse developments in prescribing of antisecretory medication in Denmark 2001-2011 and to assess the impacts of interventions on prescribing of antisecretory medication. Methods: Register-based cohort study covering the entire Danish population of currently 5.5 million inhabitants. Developments in the prescribing of antisecretory medication over time in Denmark between 2001 and 2011 and association with age and gender of users along with the impact of interventions on the prescribing of drug subgroups are analysed. Results: 96.8% of all antisecretory drugs sold are proton pump inhibitors (PPIs) and 94.4% of the PPIs are prescribed in primary care. Prescribing of PPIs has increased substantially during the past decade. Both number of users and the average individual use have increased. The prescribing of ulcerogenic drugs to the elderly has stagnated in the same time range. Reimbursement modifications and scientific guidelines do not seem to have had a substantial influence on the steadily increasing prescribing of PPIs. Conclusion: Use of PPIs has increased substantially during the past decade, without a change in indications for use of PPIs in the same time range. Interventions to enhance adherence to guidelines and promote rational use of PPIs do not seem to have had a substantial influence on the overall prescribing rate.

The authors examined the association between semen quality and caffeine intake among 2,554 young Danish men recruited when they were examined to determine their fitness for military service in 2001-2005. The men delivered a semen sample and answered a questionnaire including information about caffeine intake from various sources, from which total caffeine intake was calculated. Moderate caffeine and cola intakes (101-800 mg/day andor =14 0.5-L bottles of cola/week) compared with low intake (or =100 mg/day, no cola intake) were not associated with semen quality. High cola (14 0.5-L bottles/week) and/or caffeine (800 mg/day) intake was associated with reduced sperm concentration and total sperm count, although only significant for cola. High-intake cola drinkers had an adjusted sperm concentration and total sperm count of 40 mill/mL (95% confidence interval (CI): 32, 51) and 121 mill (95% CI: 92, 160), respectively, compared with 56 mill/mL (95% CI: 50, 64) and 181 mill (95% CI: 156, 210) in non-cola-drinkers, which could not be attributed to the caffeine they consumed because it was140 mg/day. Therefore, the authors cannot exclude the possibility of a threshold above which cola, and possibly caffeine, negatively affects semen quality. Alternatively, the less healthy lifestyle of these men may explain these findings.

The free fatty acid 1 receptor (FFA1 or GPR40), which is highly expressed on pancreatic β-cells and amplifies glucose-stimulated insulin secretion, has emerged as an attractive target for the treatment of type 2 diabetes. Several FFA1 agonists containing the para-substituted dihydrocinnamic acid moiety are known. We here present a structure-activity relationship study of this compound family suggesting that the central methyleneoxy linker is preferable for the smaller compounds, whereas the central methyleneamine linker gives higher potency to the larger compounds. The study resulted in the discovery of the potent and selective full FFA1 agonist TUG-469 (29).

BACKGROUND: To improve survival rates for colorectal cancer, referral guidelines have been implemented. First step in the diagnostic process is for the individual to recognize the symptoms and contact his/her general practitioner (GP) for evaluation.OBJECTIVES: To determine (i) the prevalence of specific and non-specific symptom experiences indicative of colorectal cancer, (ii) the proportion of subsequent contacts to GPs, (iii) to explore the possible differences in symptom experience and contact to GPs between age and sex.METHODS: A nationwide study of 100000 adults, aged 20 years and older, were randomly selected in the general population and invited to participate in an internet-based survey. Items regarding experience of specific and non-specific alarm symptoms of colorectal cancer within the preceding 4 weeks and contact to GP were included.RESULTS: A total of 49706 subjects completed the questionnaire. Abdominal pain was the most common specific alarm symptom (19.7%) and tiredness was the most common non-specific symptom (49.8%). The experiences of symptoms were more common among women and more common in the youngest age groups for both sexes. The symptom leading to the highest proportion of GP contacts was rectal bleeding (33.8%). When experiencing any combination of two specific alarm symptoms, the proportion who contacted a GP was less than 50%. The combination of a non-specific and a specific alarm symptom gave rise to the highest proportion of GP contacts.CONCLUSION: Although specific and non-specific alarm symptoms of colorectal cancer are common in the general population, the proportion of GP contacts is low.