Breast and cervical cancer screening behaviours among colorectal cancer survivors in Nova Scotia

Purpose We analyzed patterns and factors associated with receipt of breast and cervical cancer screening in a cohort of colorectal cancer survivors. Methods Individuals diagnosed with colorectal cancer in Nova Scotia between January 2001 and December 2005 were eligible for inclusion. Receipt of breast and cervical cancer screening was determined using administrative data. General-population age restrictions were used in the analysis (breast: 40-69 years; cervical: 21-75 years). Kaplan-Meier and Cox proportional hazards models were used to assess time to first screen. Results Of 318 and 443 colorectal cancer survivors eligible for the breast and cervical cancer screening analysis respectively, 30.1% [95% confidence interval (CI): 21.2% to 39.0%] never received screening mammography, and 47.9% (95% CI: 37.8% to 58.0%) never received cervical cancer screening during the study period. Receipt of screening before the colorectal cancer diagnosis was strongly associated with receipt of screening after diagnosis (hazard ratio for breast cancer screening: 4.71; 95% CI: 3.42 to 6.51; hazard ratio for cervical cancer screening: 6.83; 95% CI: 4.58 to 10.16). Conclusions Many colorectal cancer survivors within general-population screening age recommendations did not receive breast and cervical cancer screening. Future research should focus on survivors who meet age recommendations for population-based cancer screening.