Table 3 Data collection phases and measures obtained
Phase | Data collection | Measures |
|---|---|---|
Phase 1 | Baseline survey mailed to psychosocial subgroup (n = 2,400); reminders sent 3 and 7 weeks from initial mailing | Demographic characteristics: age, education, country of birth, marital status, employment, insurance coverage. |
TTM stage: decision stage for screening assessed by TTM stage (precontemplation, contemplation, action, maintenance). | ||
Psychosocial constructs: barriers, benefits, self-efficacy, susceptibility, social influence and social support. | ||
Phase 2 | Screening advance notification and invitations; reminders sent 6 weeks after mailing of invitation | Receipt or non-receipt of completed FIT, date of return of FIT, reasons for opt-out recorded by the Bowel Health Service, Repatriation General Hospital, Adelaide, Australia. |
Phase 3 | Endpoint survey mailed to baseline survey respondents (n = 1,200, estimated); reminders sent 3 and 7 weeks from initial mailing | TTM stage and psychosocial constructs as measured in the baseline survey. |
Phase 4 | Qualitative evaluation; data obtained following screening phase from focus groups, including participants from each of the trial arms | Why participants chose or chose not to use the FIT. |
Reaction to, and satisfaction with, the intervention. | ||
How intervention materials could be improved. |