Reasons people avoid colorectal cancer information: a mixed-methods study

With screening, colorectal cancer can be detected when treatable, or even prevented. However, approximately one in five people tend to avoid colorectal cancer information, and avoidance is associated with being less likely to have been screened for the disease. Crucial to developing strategies to reduce information avoidance, we sought a comprehensive understanding of reasons people avoid colorectal cancer information.

In a mixed methods study, we surveyed 200 participants who varied with respect to avoidance and interviewed 15 people who tended to avoid colorectal cancer information (all aged 40-75) about reasons for avoiding.

In both survey and interviews, primary reasons for information avoidance were: (1) shielding from anxiety and other aversive emotion, (2) perceived information sufficiency and (3) feelings of information overload. Trait anxiety, fear of diagnosis, anticipating negative interactions with healthcare, and negative associations with screening procedures exacerbated avoidance. Participants justified information non-relevance by attributing risk to other people's characteristics such as family history, gastrointestinal symptoms, being male, or living an unhealthy lifestyle.

Novel findings include the triggering influence of trait anxiety and financial constraints on information avoidance. Also, information overload and incorrect understanding of risk factors may exacerbate perceptions of information sufficiency and avoidance.