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Morbidity as a Predictor for Participation in the Danish National Mammography Screening Program: A Cross-Sectional Study

Authors Viuff JH, Vejborg I, Schwartz W, Bak M, Mikkelsen EM

Received 18 February 2020

Accepted for publication 28 April 2020

Published 25 May 2020 Volume 2020:12 Pages 509—518

DOI https://doi.org/10.2147/CLEP.S250418

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Professor Irene Petersen


Jakob H Viuff,1 Ilse Vejborg,2 Walter Schwartz,3 Martin Bak,4 Ellen M Mikkelsen1

1Department of Clinical Epidemiology, Aarhus University Hospital,Aarhus N 8200, Denmark; 2Department of Radiology, University Hospital of Copenhagen Rigshospitalet, Copenhagen 2100, Denmark; 3Department of Radiology, Odense University Hospital, Odense C 5000, Denmark; 4Department of Pathology, Sydvestjysk Sygehus, Esbjerg 6700, Denmark

Correspondence: Jakob H Viuff
Virus, Lifestyle and Genes, Danish Cancer Society Research Center, Strandboulevarden 49, Copenhagen 2100, Denmark
Email jviuff@cancer.dk

Purpose: In this cross-sectional study, we evaluated the association between morbidity and participation in the prevalence round of the Danish national mammography screening program.
Patients and Methods: Morbidity was assessed by the Charlson Comorbidity Index (CCI) score (0, 1– 2, and ≥ 3) and by 19 individual diagnoses. We retrieved data on participation from The Danish Quality Database of Mammography Screening and on diagnoses from The Danish National Patient Registry. We estimated prevalence proportion ratios (PR) with 95% confidence intervals (CI).
Results: In total, 519,009 (79.8%) women participated in the first national breast cancer screening round. Relative to women with a CCI score of 0, the adjusted PRs were 0.96 (95% CI: 0.95– 0.96) for a CCI score of 1– 2 and 0.80 (95% CI: 0.79– 0.81) for a CCI score of ≥ 3. Compared with no disease, the PRs for a diagnosis of the most prevalent, but less severe diseases, chronic pulmonary disease, cerebrovascular disease, diabetes I and II were 0.93 (95% CI: 0.93– 0.94), 0.96 (95% CI: 0.94– 0.96), and 0.96 (95% CI: 0.95– 0.97), respectively. Among women with low prevalent, but most severe diseases, the PRs were 0.69 (95% CI: 0.60– 0.81) for AIDS and 0.73 (95% CI: 0.70– 0.76) for metastatic solid tumor.
Conclusion: Women with a high CCI score or one severe chronic condition are less likely to participate in breast cancer screening compared to women without disease. However, these women account for a small proportion of all non-participating women. Thus, it might be most beneficial to maximize breast cancer screening participation in women with less severe although more common morbidities.

Keywords: mass screening, mammography, breast cancer, patient compliance, morbidity and comorbidity

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