The importance of people's values and preferences for colorectal cancer screening participation.

BACKGROUND

To explore how individuals reason when they make decisions about participating in colorectal cancer (CRC) screening.

METHODS

Individuals randomized to FIT or colonoscopy included in the Screening of Swedish Colons (SCREESCO) program was invited to focus group discussions and individual telephone interviews. The concept of shared decision-making (SDM: information; values/preferences; involvement) was used as a matrix for the analyses. To validate findings, additional focus group discussions using the nominal group technique were performed.

RESULTS

Lack of knowledge of CRC and CRC screening was prominent for participants and non-participants, while the results differed between the groups in relation to their values and preferences. The influence of significant others promoted participation while it prevented it among non-participants. Those who participated and those who did not made it clear that there was no need to involve health care professionals when making the decision.

CONCLUSIONS

Based on the results, a display of different ways to spread knowledge and communicate about CRC and CRC-screening could be applied such as, community-based information campaigns, decisions aids, interactive questionnaires, chat-functions and telephone support. The disparity in values and preferences between participants and non-participants may be the key to understand why non-participants make their decisions not to participate and warrant further exploration.