Von Wagner, C;
Cadar, D;
Hackett, R;
Demakakos, P;
Beeken, R;
Cooper Bailey, S;
Wolf, M;
... Stoffel, S; + view all
(2019)
Type 2 diabetes and colorectal cancer screening: Findings from the English Longitudinal Study of Ageing.
Journal of Medical Screening
10.1177/0969141319874834.
(In press).
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Abstract
Objectives. While previous studies have identified type 2 diabetes (T2D) as a risk factor for colorectal cancer (CRC), little is known about whether T2D influences participation in CRC screening programmes. This study tested the extent to which Type 2 Diabetes is negatively associated with colorectal cancer screening uptake. Methods. In this study, we analysed individual data of screening-eligible men and women aged 60 to 75 without cancer diagnosis from wave 6 of the English Longitudinal Study of Ageing (collected 2012-2013) to investigate whether T2D influences CRC screening behaviour independently of demographic characteristics, body mass index, socio-economic status, and other chronic diseases. Results. Using both self-reported T2D diagnosis and glycated haemoglobin (HbA1c), individuals who reported to have been diagnosed with T2D or had HbA1c levels of 48 mmol/mol or higher were less likely to have ever completed a screening test (faecal occult blood test; 62.8% vs 75.8%, p<0.01) or to be up-to-date with their biennial screening invitation (60.2% vs 72.0%, p<0.05). The negative associations of T2D on CRC screening were found both in unadjusted and adjusted regression models. Conclusions. Future qualitative and quantitative research should identify reasons for this discrepancy to inform interventions to increase screening uptake in this high-risk population.
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