Factors associated with participation in an occupational program for colorectal cancer screening.

This study reports factors associated with participation in a colorectal cancer screening program for a cohort of workers on a polypropylene manufacturing unit. The impetus for the screening program was the discovery of a colorectal cancer cluster among workers on this unit. The program included a life-style/risk factor questionnaire, fecal occult blood test, a 60-cm colonoscopy, and an air-contrast barium enema. Overall, 52.5% of the 406 men who were offered screening participated in the program. Of those screened, only 40% attended a briefing, but over 80% of those who attended a briefing came for screening. Factors associated with completion of screening are analyzed and discussed in the context of the literature on participation in colorectal screening programs. The implications for colorectal cancer screening of occupational groups believed to be at high risk are considered.