John Brodersen
Biographic Data
| ID | 333909 |
|---|---|
| NAME | John Brodersen |
| GIVEN NAMES | John |
| FAMILY NAME | Brodersen |
| SIGNATURE | BRODERSEN J |
| AFFILIATIONS | University of Copenhagen |
| ORCID | 0000-0001-9369-3376 |
| VERIFIED | Yes |
| TOTAL WORKS | 25 |
| TOTAL CITATIONS | 4 |
| AUTHOR COUNT | 25 |
| EDITOR COUNT | 0 |
| FIRST PUBLICATION YEAR | 2007 |
| LATEST PUBLICATION YEAR | 2026 |
| H-INDEX | 1 |
Does information inform? Societal dynamics of cancer screening
Communicating the harms associated with participation in national screening programmes is not a straightforward process. In a previous study, we interviewed Danish women in the age group 23–55 and found that they tended to reject or downplay the harms presented in an information pamphlet related to cervical cancer screening. This phenomenon we termed the ‘Perception Gap’. In this article, we revisit the original data and draw on theoretical frame…
‘Where do we draw the line?’ - pregnant women’s responses to proposed genetic carrier screening for cystic fibrosis during pregnancy in Denmark
In Denmark, nearly all pregnant women participate in the national prenatal screening programme offered through the public healthcare system. With advancements in reproductive technology, there is a growing demand for prenatal genetic testing in both private and public healthcare settings. In 2020, a political proposal was introduced to expand the national screening programme to include genetic carrier screening for cystic fibrosis. This study exp…
The Multimorbidity Questionnaire (MMQ1)
The English-language MMQ1 demonstrated adequate psychometric properties using classical test theory. Further validation using Rasch analysis is planned, and may help optimise and abbreviate the measure. This PROM has the potential to improve the measurement of QOL in MLTC research, including trials
Downstream healthcare use following breast cancer screening
BACKGROUND: For evaluation of breast cancer screening and informed prioritisation, it is important to examine the downstream healthcare use associated to participation. The objective of this study is to determine the healthcare use among breast cancer screening participants compared with screening-naïve controls. METHODS: The study is a register-based cohort study with 14 years of follow-up. We compare healthcare use among women who participated …
The expert eye - Navigating ambiguity in clinical breast radiology
Drawing on phenomenological concepts of embodiment and the theory of clinical judgment, we examine how radiologists navigate the inherent risk of overtesting and overdiagnosis in breast cancer screening. Based on 12 weeks of fieldwork at a breast radiology department, we explore how radiologists navigate clinical ambiguity when women are recalled for further diagnostics following an abnormal screening mammogram. Radiologists expressed a strong se…
Rethinking the logic of early diagnosis in cancer
To reduce morbidity and mortality of cancer, more countries have implemented strategies to detect cancer, based on the logic of 'the sooner the better'. Time is thereby an essential component in how cancer research, policies, and prevention are practiced today. Where the logic of early diagnosis benefits some, the logic also produces harms. In this article, we use a cross-disciplinary case-study design to discuss how different notions of time and…
Speed, accuracy, and efficiency
Digitization is often presented in policy discourse as a panacea to a multitude of contemporary problems, not least in healthcare. How can policy promises relating to digitization be assessed and potentially countered in particular local contexts? Based on a study in Denmark, we suggest scrutinizing the politics of digitization by comparing policy promises about the future with practitioners' experience in the present. While Denmark is one of the…
Data driven or data informed? How general practitioners use data to evaluate their own and colleagues' clinical work in clusters
In contemporary policy discourses, data are presented as key assets for improving health-care quality: policymakers want health care to become 'data driven'. In this article, we focus on a particular example of this ambition, namely a new Danish national quality development program for general practitioners (GPs) where doctors are placed in so-called 'clusters'. In these clusters, GPs are obliged to assess their own and colleagues' clinical quali…
Women's experiences of age‐related discontinuation from mammography screening
INTRODUCTION: In Denmark, women are discontinued from mammography screening at age 69 due to decreased likelihood of benefits and increased likelihood of harm. The risk of harm increases with age and includes false positives, overdiagnosis and overtreatment. In a questionnaire survey, 24 women expressed unsolicited concerns about being discontinued from mammography screening due to age. This calls for further investigation of experiences related …
Data as symptom
People are increasingly able to generate their own health data through new technologies such as wearables and online symptom checkers. However, generating data is one thing, interpreting them another. General practitioners (GPs) are likely to be the first to help with interpretations. Policymakers in the European Union are investing heavily in infrastructures to provide GPs access to patient measurements. But there may be a disconnect between pol…
Luckily-I am not the worrying kind
In Denmark, due to the implementation of the Non-specific Symptoms and Signs of Cancer-Cancer Patient Pathway (NSSC-CPP), more people with symptoms such as fatigue and weight loss are informed that their symptoms might indicate cancer and they are referred to the pathway. But what do patients in the NSSC-CPP experience, in particular, with respect to being in an affective state of anticipation of a cancer diagnosis? We conducted participant obser…
‘People say it is dangerous’
Introduction: Mild hypertension is a common asymptomatic condition present in people at low risk of future cardiovascular events. These people represent approximately two-thirds of those diagnosed with hypertension. The best available evidence does not support pharmacological treatment for mild hypertension to reduce cardiovascular mortality. Additionally, overdetection of hypertension also occurs, and this practice is supported by public awarene…
The Tyranny of Numbers
All Danish adults have access to their electronic medical records on the e-health platform Sundhed.dk, which is intended as a means to empower patients. But what happens when patients see their paraclinical test results presented as numbers which are flagged as either 'normal' or 'abnormal'? Based on fieldwork in general practices and consultations, and on observations of individuals living with chronic illnesses, we investigated how patients and…
Consequences of screening in colorectal cancer (COS-CRC)
An extended version of COS specifically for use in a CRC screening setting has been developed. The extended part encompasses four new scales and one new single item. The original COS with the CRC-screening specific extension is called consequences of screening in colorectal cancer (COS-CRC). COS-CRC possessed reliability, unidimensionality and invariant measurement
Co-Design of a Trustworthy AI System in Healthcare
This paper documents how an ethically aligned co-design methodology ensures trustworthiness in the early design phase of an artificial intelligence (AI) system component for healthcare. The system explains decisions made by deep learning networks analyzing images of skin lesions. The co-design of trustworthy AI developed here used a holistic approach rather than a static ethical checklist and required a multidisciplinary team of experts working w…
Psychosocial consequences of invitation to colorectal cancer screening
BACKGROUND: Psychosocial consequences of colorectal cancer (CRC) screening can arise anywhere in the screening cascade. Previous studies have investigated the consequences of participating in CRC screening; however, we have not identified any studies investigating the psychosocial consequences of receiving the invitation. Therefore, the objective of this study was to investigate psychosocial consequences of invitation to CRC screening. METHODS: T…
The perception gap
The benefits and harms of cervical cancer screening are delicately balanced, and in that sense, many argue that participation should be based on an informed choice. Information pamphlets play a central part in the process of obtaining informed consent from women, and therefore adequate communication about health and risk is essential. However, pamphlets on screening have been shown to be information poor and biased in favour of participation, and…
Informed or misinformed choice? Framing effects in a national information pamphlet on colorectal cancer screening
In March 2014 the Danish Health Authority established a national screening programme for colorectal cancer. During a four-year period all Danish citizens aged 50–74 years will receive an invitation along with an information pamphlet about the benefits and harms of participating. There is an international consensus that participation in cancer screening should be based on informed consent, as all screening programmes for cancer have the potential …
Consequences of screening in cervical cancer
The reliability and the dimensionality of a condition-specific measure with high content validity for women having an abnormal cervical cancer screening results have been demonstrated. This new questionnaire called Consequences Of Screening in Cervical Cancer (COS-CC) covers in two parts the psychosocial experience in cervical cancer screening
How does HPV vaccination status relate to risk perceptions and intention to participate in cervical screening? a survey study
HPV vaccinated women more often than unvaccinated women intended to participate in screening and they perceived cervical cancer risk to be higher and the vaccine effect to be larger than unvaccinated women did. However, in our analyses, risk perceptions could not explain screening intentions neither among vaccinated nor among unvaccinated women
The structure of medical decisions
Increasingly, medical choices involve deciding whether to look for evidence of undetected, asymptomatic conditions, or increased risk of future conditions (i.e. screening). Those who screen at sufficiently high risk face decisions about interventions to prevent or postpone the onset of possible, but not certain, future symptomatic conditions. Other preventive decisions include whether or not to accept population-based intervention, such as vaccin…
Better safe than sorry
Breast screening with mammography can be contentious because of its unintended harmful repercussions. A false-positive mammography is one of the most frequent harms and can encompass both short- and long-term psychosocial implications. Based on eight qualitative in-depth interviews with women who reported negative psychosocial consequences following a false-positive mammography, this article explores how women in the study experienced having a fa…
Opening Pandora's box
Abdominal aortic aneurysm (AAA) is a ballooning-out of the aorta that does not normally give any symptoms. Undetected and untreated an aortic aneurysm can rupture, which in most cases is fatal. Mass screening of 65-year old men for the early detection of AAA and, in selected cases, operation seem to reduce mortality due to rupture, although, screening has not reduced the overall mortality in this group. In Västra Götaland, the southwest part of S…
To nudge or not to nudge
‘Nudging—and the underlying idea ‘libertarian paternalism’—to an increasing degree influences policy thinking in the healthcare sector. This article discusses the influence exerted upon a woman's choice of participation in the Danish breast screening programme in light of ‘libertarian paternalism’. The basic tenet of ‘libertarian paternalism’ is outlined and the relationship between ‘libertarian paternalism’ and informed consent investigated. Key…
Screening in disease prevention
Edited by Walter W Holland, Susie Stewart. Published by Radcliffe Medical Press, 2005, 168 pp, ISBN 1-85775-770-X Holland and Stewart have updated their book on screening from 1990. The new edition gives the inexperienced reader a thorough introduction to the specialty of medical screening, with numerous valuable references for further reading. The authors want to cover the entire subject of screening and that is probably the weakness of the book…
To nudge or not to nudge
‘Nudging—and the underlying idea ‘libertarian paternalism’—to an increasing degree influences policy thinking in the healthcare sector. This article discusses the influence exerted upon a woman's choice of participation in the Danish breast screening programme in light of ‘libertarian paternalism’. The basic tenet of ‘libertarian paternalism’ is outlined and the relationship between ‘libertarian paternalism’ and informed consent investigated. Key…
Rethinking the logic of early diagnosis in cancer
To reduce morbidity and mortality of cancer, more countries have implemented strategies to detect cancer, based on the logic of 'the sooner the better'. Time is thereby an essential component in how cancer research, policies, and prevention are practiced today. Where the logic of early diagnosis benefits some, the logic also produces harms. In this article, we use a cross-disciplinary case-study design to discuss how different notions of time and…
Luckily-I am not the worrying kind
In Denmark, due to the implementation of the Non-specific Symptoms and Signs of Cancer-Cancer Patient Pathway (NSSC-CPP), more people with symptoms such as fatigue and weight loss are informed that their symptoms might indicate cancer and they are referred to the pathway. But what do patients in the NSSC-CPP experience, in particular, with respect to being in an affective state of anticipation of a cancer diagnosis? We conducted participant obser…
Screening in disease prevention
Edited by Walter W Holland, Susie Stewart. Published by Radcliffe Medical Press, 2005, 168 pp, ISBN 1-85775-770-X Holland and Stewart have updated their book on screening from 1990. The new edition gives the inexperienced reader a thorough introduction to the specialty of medical screening, with numerous valuable references for further reading. The authors want to cover the entire subject of screening and that is probably the weakness of the book…
Opening Pandora's box
Abdominal aortic aneurysm (AAA) is a ballooning-out of the aorta that does not normally give any symptoms. Undetected and untreated an aortic aneurysm can rupture, which in most cases is fatal. Mass screening of 65-year old men for the early detection of AAA and, in selected cases, operation seem to reduce mortality due to rupture, although, screening has not reduced the overall mortality in this group. In Västra Götaland, the southwest part of S…
To nudge or not to nudge
‘Nudging—and the underlying idea ‘libertarian paternalism’—to an increasing degree influences policy thinking in the healthcare sector. This article discusses the influence exerted upon a woman's choice of participation in the Danish breast screening programme in light of ‘libertarian paternalism’. The basic tenet of ‘libertarian paternalism’ is outlined and the relationship between ‘libertarian paternalism’ and informed consent investigated. Key…
The structure of medical decisions
Increasingly, medical choices involve deciding whether to look for evidence of undetected, asymptomatic conditions, or increased risk of future conditions (i.e. screening). Those who screen at sufficiently high risk face decisions about interventions to prevent or postpone the onset of possible, but not certain, future symptomatic conditions. Other preventive decisions include whether or not to accept population-based intervention, such as vaccin…
Better safe than sorry
Breast screening with mammography can be contentious because of its unintended harmful repercussions. A false-positive mammography is one of the most frequent harms and can encompass both short- and long-term psychosocial implications. Based on eight qualitative in-depth interviews with women who reported negative psychosocial consequences following a false-positive mammography, this article explores how women in the study experienced having a fa…
How does HPV vaccination status relate to risk perceptions and intention to participate in cervical screening? a survey study
HPV vaccinated women more often than unvaccinated women intended to participate in screening and they perceived cervical cancer risk to be higher and the vaccine effect to be larger than unvaccinated women did. However, in our analyses, risk perceptions could not explain screening intentions neither among vaccinated nor among unvaccinated women
Informed or misinformed choice? Framing effects in a national information pamphlet on colorectal cancer screening
In March 2014 the Danish Health Authority established a national screening programme for colorectal cancer. During a four-year period all Danish citizens aged 50–74 years will receive an invitation along with an information pamphlet about the benefits and harms of participating. There is an international consensus that participation in cancer screening should be based on informed consent, as all screening programmes for cancer have the potential …
Consequences of screening in cervical cancer
The reliability and the dimensionality of a condition-specific measure with high content validity for women having an abnormal cervical cancer screening results have been demonstrated. This new questionnaire called Consequences Of Screening in Cervical Cancer (COS-CC) covers in two parts the psychosocial experience in cervical cancer screening
The perception gap
The benefits and harms of cervical cancer screening are delicately balanced, and in that sense, many argue that participation should be based on an informed choice. Information pamphlets play a central part in the process of obtaining informed consent from women, and therefore adequate communication about health and risk is essential. However, pamphlets on screening have been shown to be information poor and biased in favour of participation, and…
Consequences of screening in colorectal cancer (COS-CRC)
An extended version of COS specifically for use in a CRC screening setting has been developed. The extended part encompasses four new scales and one new single item. The original COS with the CRC-screening specific extension is called consequences of screening in colorectal cancer (COS-CRC). COS-CRC possessed reliability, unidimensionality and invariant measurement
Co-Design of a Trustworthy AI System in Healthcare
This paper documents how an ethically aligned co-design methodology ensures trustworthiness in the early design phase of an artificial intelligence (AI) system component for healthcare. The system explains decisions made by deep learning networks analyzing images of skin lesions. The co-design of trustworthy AI developed here used a holistic approach rather than a static ethical checklist and required a multidisciplinary team of experts working w…
Psychosocial consequences of invitation to colorectal cancer screening
BACKGROUND: Psychosocial consequences of colorectal cancer (CRC) screening can arise anywhere in the screening cascade. Previous studies have investigated the consequences of participating in CRC screening; however, we have not identified any studies investigating the psychosocial consequences of receiving the invitation. Therefore, the objective of this study was to investigate psychosocial consequences of invitation to CRC screening. METHODS: T…
‘People say it is dangerous’
Introduction: Mild hypertension is a common asymptomatic condition present in people at low risk of future cardiovascular events. These people represent approximately two-thirds of those diagnosed with hypertension. The best available evidence does not support pharmacological treatment for mild hypertension to reduce cardiovascular mortality. Additionally, overdetection of hypertension also occurs, and this practice is supported by public awarene…
The Tyranny of Numbers
All Danish adults have access to their electronic medical records on the e-health platform Sundhed.dk, which is intended as a means to empower patients. But what happens when patients see their paraclinical test results presented as numbers which are flagged as either 'normal' or 'abnormal'? Based on fieldwork in general practices and consultations, and on observations of individuals living with chronic illnesses, we investigated how patients and…
Women's experiences of age‐related discontinuation from mammography screening
INTRODUCTION: In Denmark, women are discontinued from mammography screening at age 69 due to decreased likelihood of benefits and increased likelihood of harm. The risk of harm increases with age and includes false positives, overdiagnosis and overtreatment. In a questionnaire survey, 24 women expressed unsolicited concerns about being discontinued from mammography screening due to age. This calls for further investigation of experiences related …
Data as symptom
People are increasingly able to generate their own health data through new technologies such as wearables and online symptom checkers. However, generating data is one thing, interpreting them another. General practitioners (GPs) are likely to be the first to help with interpretations. Policymakers in the European Union are investing heavily in infrastructures to provide GPs access to patient measurements. But there may be a disconnect between pol…
Luckily-I am not the worrying kind
In Denmark, due to the implementation of the Non-specific Symptoms and Signs of Cancer-Cancer Patient Pathway (NSSC-CPP), more people with symptoms such as fatigue and weight loss are informed that their symptoms might indicate cancer and they are referred to the pathway. But what do patients in the NSSC-CPP experience, in particular, with respect to being in an affective state of anticipation of a cancer diagnosis? We conducted participant obser…
Speed, accuracy, and efficiency
Digitization is often presented in policy discourse as a panacea to a multitude of contemporary problems, not least in healthcare. How can policy promises relating to digitization be assessed and potentially countered in particular local contexts? Based on a study in Denmark, we suggest scrutinizing the politics of digitization by comparing policy promises about the future with practitioners' experience in the present. While Denmark is one of the…
Data driven or data informed? How general practitioners use data to evaluate their own and colleagues' clinical work in clusters
In contemporary policy discourses, data are presented as key assets for improving health-care quality: policymakers want health care to become 'data driven'. In this article, we focus on a particular example of this ambition, namely a new Danish national quality development program for general practitioners (GPs) where doctors are placed in so-called 'clusters'. In these clusters, GPs are obliged to assess their own and colleagues' clinical quali…
‘Where do we draw the line?’ - pregnant women’s responses to proposed genetic carrier screening for cystic fibrosis during pregnancy in Denmark
In Denmark, nearly all pregnant women participate in the national prenatal screening programme offered through the public healthcare system. With advancements in reproductive technology, there is a growing demand for prenatal genetic testing in both private and public healthcare settings. In 2020, a political proposal was introduced to expand the national screening programme to include genetic carrier screening for cystic fibrosis. This study exp…
The Multimorbidity Questionnaire (MMQ1)
The English-language MMQ1 demonstrated adequate psychometric properties using classical test theory. Further validation using Rasch analysis is planned, and may help optimise and abbreviate the measure. This PROM has the potential to improve the measurement of QOL in MLTC research, including trials
Downstream healthcare use following breast cancer screening
BACKGROUND: For evaluation of breast cancer screening and informed prioritisation, it is important to examine the downstream healthcare use associated to participation. The objective of this study is to determine the healthcare use among breast cancer screening participants compared with screening-naïve controls. METHODS: The study is a register-based cohort study with 14 years of follow-up. We compare healthcare use among women who participated …
The expert eye - Navigating ambiguity in clinical breast radiology
Drawing on phenomenological concepts of embodiment and the theory of clinical judgment, we examine how radiologists navigate the inherent risk of overtesting and overdiagnosis in breast cancer screening. Based on 12 weeks of fieldwork at a breast radiology department, we explore how radiologists navigate clinical ambiguity when women are recalled for further diagnostics following an abnormal screening mammogram. Radiologists expressed a strong se…
Rethinking the logic of early diagnosis in cancer
To reduce morbidity and mortality of cancer, more countries have implemented strategies to detect cancer, based on the logic of 'the sooner the better'. Time is thereby an essential component in how cancer research, policies, and prevention are practiced today. Where the logic of early diagnosis benefits some, the logic also produces harms. In this article, we use a cross-disciplinary case-study design to discuss how different notions of time and…
Does information inform? Societal dynamics of cancer screening
Communicating the harms associated with participation in national screening programmes is not a straightforward process. In a previous study, we interviewed Danish women in the age group 23–55 and found that they tended to reject or downplay the harms presented in an information pamphlet related to cervical cancer screening. This phenomenon we termed the ‘Perception Gap’. In this article, we revisit the original data and draw on theoretical frame…
Medicine (22 works) · Global Cancer Incidence and Screening (13 works) · Psychology (12 works) · Cancer (10 works) · Computer Science (10 works) · Internal Medicine (8 works) · Colorectal Cancer Screening and Detection (7 works) · BRCA gene mutations in cancer (6 works) · Psychiatry (6 works) · Family medicine (5 works)