• Cassie D Turner, Rebecca Lindsay, and Michele Heisler.
• Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan cpringle@med.umich.edu.
• Ann Fam Med. 2021 Nov 1; 19 (6): 532-539.

PurposeWe undertook a study to ascertain patient characteristics associated with enrollment and engagement in a type 2 diabetes peer health coaching program at an urban health care facility serving predominantly Black veteran men, to improve the targeting of such programs.MethodsA total of 149 patients declined enrollment in a randomized controlled trial but provided sociodemographic, clinical, and psychosocial information. A total of 290 patients enrolled and were randomized to 2 peer coaching programs; they provided sociodemographic, clinical, and survey data, and were analyzed according to their level of program engagement (167 engaged, 123 did not engage) irrespective of randomization group. Qualitative interviews were conducted with 14 engaged participants.ResultsPatients who enrolled were more likely to be Black men, have higher levels of education, have higher baseline hemoglobin A1c levels, describe their diabetes self-management as "fair" or "poor," and agree they "find it easy to get close to others" (P <.05 for each). At the program's end, patients who had engaged were more likely than those who had not to describe their peer coaches as being supportive of their autonomy (mean score, 85.4 vs 70.7; P <.001). The importance of coaches being encouraging, supportive, and having common ground/shared experiences with participants also emerged as key themes in interviews with engaged participants.ConclusionIndividuals with greatest perceived need were more likely to enroll in our trial of peer coaching, but the only factor associated with engagement was finding one's coach to support autonomy. Our findings reinforce the importance of training and ensuring fidelity of peer coaches to autonomy-supportive communication styles for participant engagement. In tailoring peer support programs for Black men, future research should elucidate which shared characteristics between participant and peer coach are most important for engagement and improved outcomes.Visual abstract.© 2021 Annals of Family Medicine, Inc.

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