Table 1 Eligibility criteria for effectiveness trial
Inclusion criteria | Â |
 Demographics | Male or female, 18 years of age or older, of any race/ethnicity, who are English and/or Spanish speakers and are receiving supportive housing services at the study sites |
 Mental health diagnosis | Chart diagnosis of a serious mental illness (e.g., schizophrenia, bipolar disorder, schizoaffective disorders, major depression) |
 Body mass index | BMI ≥ 25 (kg/m2) |
 Informed consent | Able and willing to give written informed consent to participate in study |
 Willingness to obtain medical clearance | Able and willing to obtain a medical clearance letter from a primary care physician with assistance from the study team if randomly assigned to the Peer GLB group |
Exclusion criteria | Â |
 Substance abuse | Need for detoxification services at the time of recruitment |
 Suicidal/Homicidal ideation | Pose a danger to self or others at the time of recruitment |
 Capacity to consent | Failed capacity-to-consent questionnaire [88] |
 Cognitive impairment | For participants 65 years or older: screen positive for cognitive impairment based on Mini-cog clock test [89] |
 Medical contraindications to participate in weight loss program | Self-report of any of the following medical conditions that are contraindicated to participation in a weight loss program: cancer requiring active treatment, liver failure, history of anorexia nervosa, cardiovascular event (e.g., unstable angina, myocardial infarction) within the past 6 months, walking limitations preventing participation in exercise, history of weight loss surgery or planning weight loss surgery during study period, and (for female participants) pregnant or planning a pregnancy during study period. |
(Exclusion criteria for participants randomized to the intervention group: primary care physician confirms that the person has any of the following medical conditions: cancer requiring active treatment, liver failure, history of anorexia nervosa, cardiovascular event (e.g., unstable angina, myocardial infarction) within the past 6 months, walking limitations preventing participation in exercise, history of weight loss surgery or planning weight loss surgery during study period, and (for female participants) pregnant or planning a pregnancy during study period |