Prevalence and predictors of poor sexual well-being over 5 years following treatment for colorectal cancer: results from the ColoREctal Wellbeing (CREW) prospective longitudinal study.

Objectives: To describe prevalence and predictors of poor sexual well-being for men and women over 5 years following treatment for colorectal cancer.

Design: Prospective longitudinal study, from presurgery to 5 years postsurgery, with eight assessment points. Logistic regression models predicted sexual well-being from presurgery to 24 months and 24 months to 60 months; time-adjusted then fully adjusted models were constructed at each stage.

Setting: Twenty-nine hospitals in the UK.

Participants: Patients with Dukes' stage A-C, treated with curative intent, aged ≥18 years and able to complete questionnaires were eligible.

Outcome Measures: The dependent variable was the Quality of Life in Adult Cancer Survivors sexual function score. Independent variables included sociodemographic, clinical and psychosocial characteristics.

Results: Seven hundred and ninety participants provided a sexual well-being score for at least one time point. Thirty-seven per cent of men and 14% of women reported poor sexual well-being at 5 years. Baseline predictors for men at 24 months included having a stoma (OR 1.5, 95% CI 1.02 to 2.20) and high levels of depression (OR 2.69/2.01, 95% CI 1.68 to 4.32/1.12 to 3.61); men with high self-efficacy (OR confident 0.33/0.48, 95% CI 0.18 to 0.61/0.24 to 1.00; very confident 0.25/0.42, 95% CI 0.13 to 0.49/0.19 to 0.94) and social support (OR 0.52/0.56, 95% CI 0.33 to 0.81/0.35 to 0.91) were less likely to report poor sexual well-being. Predictors at 60 months included having a stoma (OR 2.30/2.67, 95% CI 1.22 to 4.34/1.11 to 6.40) and high levels of depression (OR 5.61/2.58, 95% CI 2.58 to 12.21/0.81 to 8.25); men with high self-efficacy (very confident 0.14, 95% CI 0.047 to 0.44), full social support (OR 0.26; 95% CI 0.13 to 0.53) and higher quality of life (OR 0.97, 95% CI 0.95 to 0.98) were less likely to report poor sexual well-being. It was not possible to construct models for women due to low numbers reporting poor sexual well-being.

Conclusions: Several psychosocial variables were identified as predictors of poor sexual well-being among men. Interventions targeting low self-efficacy may be helpful. More research is needed to understand women's sexual well-being.