Healthy choices, healthy changes: A randomized trial of incentives to promote healthy eating and exercise in people with schizophrenia and other serious mental illnesses.

INTRODUCTION: People with schizophrenia and other serious mental illnesses (SMI) represent a concerning health disparity population, with 10-30 fewer years of life compared to the general population, mainly from high rates of cardiovascular disease (CVD). Preventing CVD is possible with exercise and diet interventions, but only 50 % of participants in clinical trials achieve reduction in CVD risk. This study assessed whether cash incentives improved weight loss, cardiovascular endurance, and/or mortality risk when added to one of four healthy lifestyle programs (gym membership, Weight Watchers membership, the InSHAPE program, InSHAPE + Weight Watchers). METHODS: From 2012 to 2015, 1348 overweight or obese adults with SMI enrolled in a study using equipoise stratified randomization. Participants were randomly assigned to intervention, then to cash incentives, or not, for participation (gym and/or Weight Watchers), with baseline and quarterly assessments for 12 months. We examined effects of the interventions, key covariates, and incentives, using generalized linear models. RESULTS: Main effects of randomization to receive cash incentives was not significant for any outcome; whereas total amount of incentives was significantly associated with all three primary outcomes (weight loss, cardiovascular endurance, mortality risk), mainly for participants in the InSHAPE+WW group who received additional cash incentives. CONCLUSIONS: Incentives may be effective at preventing CVD and improving health outcomes for people with SMI, especially in the context of intensive support for healthy lifestyle behaviors. Policy changes are required to increase access to healthy lifestyle programming and more research is needed to establish the optimal amount of incentives for people with SMI. TRIAL REGISTRATION: ClinicalTrials.gov identifier: NCT02515981.

Pragmatic replication trial of health promotion coaching for obesity in serious mental illness and maintenance of outcomes.

OBJECTIVE: Few studies targeting obesity in serious mental illness have reported clinically significant risk reduction, and none have been replicated in community settings or demonstrated sustained outcomes after intervention withdrawal. The authors sought to replicate positive health outcomes demonstrated in a previous randomized effectiveness study of the In SHAPE program across urban community mental health organizations serving an ethnically diverse population. METHOD: Persons with serious mental illness and a body mass index (BMI) >25 receiving services in three community mental health organizations were recruited and randomly assigned either to the 12-month In SHAPE program, which included membership in a public fitness club and weekly meetings with a health promotion coach, or to fitness club membership alone. The primary outcome measures were weight and cardiorespiratory fitness (as measured with the 6-minute walk test), assessed at baseline and at 3, 6, 9, 12, and 18 months. RESULTS: Participants (N=210) were ethnically diverse (46% were nonwhite), with a mean baseline BMI of 36.8 (SD=8.2). At 12 months, the In SHAPE group (N=104) had greater reduction in weight and improved fitness compared with the fitness club membership only group (N=106). Primary outcomes were maintained at 18 months. Approximately half of the In SHAPE group (51% at 12 months and 46% at 18 months) achieved clinically significant cardiovascular risk reduction (a weight loss ≥5% or an increase of >50 meters on the 6-minute walk test). CONCLUSIONS: This is the first replication study confirming the effectiveness of a health coaching intervention in achieving and sustaining clinically significant reductions in cardiovascular risk for overweight and obese persons with serious mental illness.