Summary of Specific Reasons for Individuals Declining Participation (n = 11 109)
fecal occult blood
Abbreviations: CT, computed tomography; FIT, fecal immunochemical test; FOBT, fecal occult blood test.A total of 5037 individuals did not provide, refused to provide, or offered some other reason for nonparticipation.Proportion of individuals with a preference for a specific screening modality.Proportion of individuals with concerns regarding research participation.