62 Chapter 2 Colorectal cancer screening programme Reference Study design Number of participants (n) Participants, collection period, region Characteristics Outcomes I-Change model (Woudstra, Dekker et al. 2016) Ref: 42 Qualitative interviews (purposive sampling) 30 First-generation immigrants age 48-74. (born in Turkey, Morocco and Suriname). Between FebruaryJuly 2014. Amsterdam (North Holland) All respondents felt susceptible to CRC. Knowledge about screening harm and self-efficacy to participate was low. Adult children acted as important mediators. The language and low literacy formed serious barriers to informed participation. To ensure equal opportunities for informed participation in screening, target strategies should be developed, such as oral and visual, and face-to-face communication in the mother tongue. This will help minority groups in informed decision making in CRC screening. Information factors Awareness factors Ability factors (Hummel, Steuten et al. 2013) Ref: 46 Web-based questionnaire 167 Target population screening programme, age 55-75. April 2011. Choice between: iFOBT, colonoscopy, sigmoidoscopy, and CT colonography. The Netherlands. Most preferred was CT colonography. Screening test with highest intention to attend was the iFOBT. While respondents may recognize the importance of diagnostic effectiveness in the long term, their short-term decision to attend the screening tests may be less driven by this consideration. Inconvenience, safety and frequency of tests are the strongest techniquerelated determinants of the respondents’ intention to participate in colorectal screening programs. Awareness factors Barriers
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