RESUMO
BACKGROUND: Aims: The REAL HEALTH Diabetes Study is a practice-based randomized clinical trial that compares the effectiveness of lifestyle intervention aimed at weight reduction to medical nutrition therapy in primary care patients with type 2 diabetes. This paper describes a tiered approach to recruitment, the resultant enrollment rates of sequentially more intensive recruitment strategies, and identifies barriers to participation. METHODS: Potential participants were identified using patient health registries and classified by recruitment site. Four recruitment strategies were used to achieve target enrollment: (1) mail/telephone outreach; (2) direct referral from providers; (3) orientation sessions; and (4) media/advertising. Reasons for ineligibility and non-participation were tracked. RESULTS: Fifteen thousand two hundred sixty-nine (15,269) potential participants were identified from all sources, with the clear majority coming from patient registries. Mail/telephone outreach alone had the lowest enrollment rate (1.2%). Direct referral and orientation sessions superimposed on mail/telephone outreach was used for fewer participants but had greater enrollment rates (27% and 52%.) Media/advertising was ineffective. The most commonly reported reasons for non-participation were not wanting to be in a research (30%) or a weight loss program (22%); time commitment (20%); and distance/transportation (14%). CONCLUSIONS: The use of population registries to identify potential participants coupled with successively more intensive recruitment strategies, executed in a tiered approach moving toward personal engagement to establish trust and credibility, maximized recruitment enrollment rates. Our findings regarding facilitators and barriers to recruitment could be used to inform other practice-based research or to engage patients in group interventions in usual care settings. CLINICAL TRIAL REGISTRATION: NCT02320253.
RESUMO
BACKGROUND/AIMS: The REAL HEALTH -Diabetes Study is a practice-based clinical trial that adapted the Look AHEAD lifestyle intervention for implementation in primary care settings. The trial will compare the effectiveness and cost-effectiveness of in-person group lifestyle intervention, telephone group lifestyle intervention, and individual medical nutrition therapy (MNT), the current recommended standard of care in type 2 diabetes. The primary outcome is percent weight loss at 6â¯months with outcomes also measured at 12, 18, 24 (intervention completion), and 36â¯months. Here, we describe the adaptation, trial design, implementation strategies, and baseline characteristics of enrolled participants. METHODS: The study is a three-arm, patient-level, randomized trial conducted in three community health centers (CHCs) and one diabetes practice affiliated with one academic medical center. RESULTS: The study used existing clinical infrastructure to recruit participants from study sites. Strategies for successful conduct of the trial included partnering with health-center based co-investigator clinicians, engaging primary care providers, and accommodating clinical workflows. Of 248 eligible patients who attended a screening visit, 211 enrolled, with 70 randomly assigned to in-person group lifestyle intervention, 72 to telephone group lifestyle intervention, and 69 to MNT. The cohort was 55% female, 29% non-white, with mean age 62â¯years and mean BMI 35â¯kg/m2. Enrollment rates were higher at CHC sites. CONCLUSIONS: A practice-based randomized trial of a complex behavioral lifestyle intervention for type 2 diabetes can be implemented in community health and usual clinical settings. Participant and provider engagement was higher at local CHC sites reflecting the study implementation focus. CLINICAL TRIAL REGISTRATION: NCT02320253.