The ACTS of Wellness was a cluster-randomized controlled trial developed to promote colorectal cancer screening and physical activity (PA) within urban African-American churches. Churches were recruited from North Carolina (n=12) and Michigan (n=7) and were randomized to intervention (n=10) or comparison (n=9). Church members age 50 and older completed self-administered baseline and post-intervention surveys. Intervention participants received 3 mailed tailored newsletters addressing colorectal cancer screening and PA behaviors over approximately 6 months. Individuals who were not up-to-date for screening at baseline could also receive motivational calls from a peer counselor. Comparison churches received Body & Soul, a fruit and vegetable promotion program. The main outcomes were up-to-date colorectal cancer screening and Metabolic Equivalency Task (MET)-hours/week of moderate-vigorous PA. MET-hours/week of PA was calculated using frequency, duration and intensity of reported activities with a MET score>3 (i.e. moderate intensity or greater). Multivariate analyses examined changes in the main outcomes controlling for church cluster, gender, marital status, weight and baseline values.
Baseline screening was high in both intervention (75.9%, n=374) and comparison groups (73.7%, n=338). Screening increased at follow-up: +6.4 and +4.7 percentage points for intervention and comparison respectively (p=0.25). Baseline MET-hours/week of PA was 7.8 (95%CL 6.8–8.7) for intervention and 8.7 (95%CL 7.6–9.8) for the comparison group. There were no significant changes (p=0.15) in PA for intervention (−0.30 MET-hours/week) compared to the comparison (−0.05 MET-hours/week). Among intervention participants, PA increased more for those who participated in church exercise programs and screening improved more for those who spoke with a peer counselor or recalled the newsletters. Overall, the intervention did not improve PA or screening in an urban church population. These findings support previous research indicating that structured PA opportunities are necessary to promote change in PA and churches need more support to initiate effective peer counselor programs.