Bernardine M Pinto1, Shira I Dunsiger2, Madison M Kindred3, Sheryl Mitchell4. 1. College of Nursing, University of South Carolina, 1601 Greene Street, Columbia, SC, 29209, USA. pintob@mailbox.sc.edu. 2. Brown University School of Public Health, Providence, RI, USA. 3. Augusta University, Augusta, GA, USA. 4. University of South Carolina, Columbia, SC, 29209, USA.
Abstract
PURPOSE: We aimed to identify the moderators of maintenance strategies' effects to assist cancer care organizations that offer peer mentoring physical activity programs. METHODS: A total of 161 inactive breast cancer survivors participated in a 12-month study and were randomized to one of three conditions at baseline. American Cancer Society's Reach to Recovery coaches delivered weekly calls to participants for the first 3 months. During Months 4-9, participants self-monitored PA and received feedback (Reach Plus) or additionally received monthly calls from coaches (Reach Plus Phone) or weekly text/email messages (Reach Plus Message). Moderate-to-vigorous PA (MVPA) was assessed using self-report and accelerometry at baseline, 3, 6, 9, and 12 months. We examined baseline demographics, cancer-specific, and social cognitive variables as potential moderators of MVPA. Using Latent Class Models, we identified three participant profiles. The profile was used as a moderator in longitudinal mixed-effects models of MVPA. RESULTS: Profile 1 (44%) were married, White, in preparation, with higher income and higher social support. Profile 2 (41%) were older, office employees, African American, with higher PA self-efficacy. Profile 3 (15%) were diagnosed with stage 1 cancer, in contemplation, with higher MVPA and lower social support. At follow-ups, among those with Profile 1, Reach Plus participants had higher MVPA than other groups (f2 [Formula: see text].10). Among those with Profile 2, Reach Plus Message participants had higher mean MVPA than other groups (f2 [Formula: see text].11). Among those with Profile 3, Reach Plus Phone participants had higher MVPA than other groups, f2 [Formula: see text].11 (all ps < .05). CONCLUSIONS: Organizations can choose PA maintenance strategies that are most effective for survivors with specific profiles. IMPLICATIONS FOR CANCER SURVIVORS: Breast cancer survivors with specific profiles increase PA when receiving certain PA maintenance programs. TRIAL REGISTRATION: ClinicalTrials.gov ID: NCT02694640 (Feb. 26, 2016).
PURPOSE: We aimed to identify the moderators of maintenance strategies' effects to assist cancer care organizations that offer peer mentoring physical activity programs. METHODS: A total of 161 inactive breast cancer survivors participated in a 12-month study and were randomized to one of three conditions at baseline. American Cancer Society's Reach to Recovery coaches delivered weekly calls to participants for the first 3 months. During Months 4-9, participants self-monitored PA and received feedback (Reach Plus) or additionally received monthly calls from coaches (Reach Plus Phone) or weekly text/email messages (Reach Plus Message). Moderate-to-vigorous PA (MVPA) was assessed using self-report and accelerometry at baseline, 3, 6, 9, and 12 months. We examined baseline demographics, cancer-specific, and social cognitive variables as potential moderators of MVPA. Using Latent Class Models, we identified three participant profiles. The profile was used as a moderator in longitudinal mixed-effects models of MVPA. RESULTS: Profile 1 (44%) were married, White, in preparation, with higher income and higher social support. Profile 2 (41%) were older, office employees, African American, with higher PA self-efficacy. Profile 3 (15%) were diagnosed with stage 1 cancer, in contemplation, with higher MVPA and lower social support. At follow-ups, among those with Profile 1, Reach Plus participants had higher MVPA than other groups (f2 [Formula: see text].10). Among those with Profile 2, Reach Plus Message participants had higher mean MVPA than other groups (f2 [Formula: see text].11). Among those with Profile 3, Reach Plus Phone participants had higher MVPA than other groups, f2 [Formula: see text].11 (all ps < .05). CONCLUSIONS: Organizations can choose PA maintenance strategies that are most effective for survivors with specific profiles. IMPLICATIONS FOR CANCER SURVIVORS: Breast cancer survivors with specific profiles increase PA when receiving certain PA maintenance programs. TRIAL REGISTRATION: ClinicalTrials.gov ID: NCT02694640 (Feb. 26, 2016).
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