Consequences of Screening in Breast Cancer (COS-BC): development of a questionnaire

Brodersen, John; Thorsen, Hanne

doi:10.1080/02813430802542508

Cited by 53 publications

(107 citation statements)

References 17 publications

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“…However, these outcomes have mainly been studied by means of single questions or questionnaires whose adequacy for the assessment of psychosocial consequences of false-positive mammographic screening has been questioned (5). Therefore, the Consequences of Screening-Breast Cancer questionnaire (COS-BC) was developed to target such consequences (8,9). A recent COS-BC-based study confirmed adverse effects up to 3 years following false-positive screening mammography among women in Denmark (10).…”

Section: Introductionmentioning

confidence: 99%

“…The Swedish COS-BC parts 1 (COS-BC 1) and 2 (COS-BC 2) consist of 6 scales each and 7 single items. The COS-BC 1 is intended to represent psychosocial consequences of an abnormal screening mammogram before the final diagnosis (8,9). However, these consequences may persist and some may not occur until after the diagnosis (10).…”

Section: Sample and Settingmentioning

confidence: 99%

“…The COS-BC 2 assesses psychosocial consequences of false-positive mammographic screening in the long-term, that is, consequences occurring after the final diagnosis (8). Responses (not at all, a bit, quite a bit, a lot; scored 0-3) to part 1 items are summed for each scale, where higher scores denote more negative consequences (8,9). In part 2, responses (much less, less, the same as before, more, much more) are first recoded into 3 categories ("the same as before" is unchanged, "less" and "more" becomes "less/more," and "much less" and "much more" becomes "much less/much more") scored 0 to 2 and then summed for each scale; higher scores represent higher degree of change (regardless of direction) of psychosocial consequences (8,10).…”

Section: Sample and Settingmentioning

confidence: 99%

“…Responses (not at all, a bit, quite a bit, a lot; scored 0-3) to part 1 items are summed for each scale, where higher scores denote more negative consequences (8,9). In part 2, responses (much less, less, the same as before, more, much more) are first recoded into 3 categories ("the same as before" is unchanged, "less" and "more" becomes "less/more," and "much less" and "much more" becomes "much less/much more") scored 0 to 2 and then summed for each scale; higher scores represent higher degree of change (regardless of direction) of psychosocial consequences (8,10). Four COS-BC 1 scales (Sense of dejection, Anxiety, Behavioral, Sleep) and one COS-BC 2 scale (Existential values) have supported psychometric properties for cross-sectional and longitudinal group level assessments in a Swedish setting (16) and were therefore used here.…”

Section: Sample and Settingmentioning

confidence: 99%

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Prevalence, Long-term Development, and Predictors of Psychosocial Consequences of False-Positive Mammography among Women Attending Population-Based Screening

Bolejko

Hagell

Wann-Hansson

et al. 2015

Cancer Epidemiology, Biomarkers &Amp; Prevention

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Background: Cancer screening aims to detect cancer at an asymptomatic stage, although side effects from screening also occur. We investigated the prevalence, longitudinal development, and predictors of psychosocial consequences of false-positive breast cancer screening.Methods: Three hundred ninety-nine women with false-positive screening mammography responded to the Consequences of Screening-Breast Cancer (COS-BC) questionnaire immediately after a negative diagnosis (free from breast cancer) following recall examination(s) (baseline), and 6 and 12 months later. Agematched controls (n ¼ 499) with a negative mammogram responded to the COS-BC at the same occasions. Five COS-BC scales (Sense of dejection, Anxiety, Behavioral, Sleep, and Existential values) were used as outcome measures.Results: Women with false-positive mammography had consistently higher prevalence of all five consequences compared with controls (P < 0.001). The prevalences decreased between

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Section: Introductionmentioning

confidence: 99%

Section: Sample and Settingmentioning

confidence: 99%

Section: Sample and Settingmentioning

confidence: 99%

Section: Sample and Settingmentioning

confidence: 99%

See 2 more Smart Citations

Prevalence, Long-term Development, and Predictors of Psychosocial Consequences of False-Positive Mammography among Women Attending Population-Based Screening

Bolejko

Hagell

Wann-Hansson

et al. 2015

Cancer Epidemiology, Biomarkers &Amp; Prevention

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“…The Psychological Consequences Questionnaire (PCQ) Cockburn et al (1992) is a questionnaire designed to measure psychological consequences of screening mammography. The Consequences Of Screening in Breast Cancer (COS-BC) Brodersen & Thorsen (2008) is an adaptation and translation of this instrument to a Danish setting with subscales measuring among others anxiety, sense of dejection and sleep.…”

Section: Example: Longitudinal Data From the Cos-bcmentioning

confidence: 99%

SAS macros for longitudinal IRT models

Olsbjerg

2018

Preprint

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IRT models are often applied when observed items are used to measure a unidimensional latent variable. Originally used in educational research, IRT models are now widely used when focus is on physical functioning or psychological well-being. Modern applications often need more general models, typically models for multidimensional latent variables or longitudinal models for repeated measurements. This paper describes a collection of SAS macros that can be used for fitting data to, simulating from, and visualizing longitudinal Abstract IRT models are often applied when observed items are used to measure a unidimensional latent variable. Originally used in educational research, IRT models are now widely used when focus is on physical functioning or psychological well-being. Modern applications often need more general models, typically models for multidimensional latent variables or longitudinal models for repeated measurements. This paper describes a collection of SAS macros that can be used for fitting data to, simulating from, and visualizing longitudinal IRT models. The macros encompass dichotomous as well as polytomous item response formats and are sufficiently flexible to accommodate changes in item parameters across time points and local dependence between responses at different time points.

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False Information About Breast Cancer Screening

Baker

2018

JAMA Intern Med

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ACP). These organizations issued their own guidelines 6 months earlier, with recommendations for blood pressure management of adults older than 60 years. Those guidelines recommend a target systolic blood pressure of less than 150 mm Hg-distinctly different from the target recommended by the new joint statement, which recommends a target less than 130 mm Hg. 2 This remarkable lack of consensus complicates the decision-making process for practicing clinicians and creates confusion.I would like to say to the guidelines committees: "Help me out-Please!" My job is not easy. I see 10 to 12 patients a session, and most of the patients my colleagues and I see have multiple illnesses that complicate the decision-making process about their treatment. Their problem lists often include combinations of depression, diabetes, arthritis, chronic obstructive pulmonary disease, congestive heart failure, hyperlipidemia, and other diseases, in addition to their hypertension. The guidelines were released as a 481-page report with an executive summary that ran 401 pages. It would have been nice had the committee thought to make it easy for us to review the guidelines. Fortunately, JAMA published a synopsis. 3 I understand that evidence evolves and that recommendations need to change when new evidence appears. Although that is a challenge, it is also a joy of medicine. Inconsistent guidelines, however, implicitly ask clinicians to be the experts in deciding which expert guideline best interprets the evidence. That is not reasonable. This is a plea from the trenches: we need more clarity to guide us with less robust confusion.

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Consequences of Screening in Breast Cancer (COS-BC): development of a questionnaire

Cited by 53 publications

References 17 publications

Prevalence, Long-term Development, and Predictors of Psychosocial Consequences of False-Positive Mammography among Women Attending Population-Based Screening

Prevalence, Long-term Development, and Predictors of Psychosocial Consequences of False-Positive Mammography among Women Attending Population-Based Screening

SAS macros for longitudinal IRT models

False Information About Breast Cancer Screening

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