The prevalence of obesity and its associations with gender, clinical factors, and medical co-morbidities were examined among 457 adults attending public mental health programs in 4 U.S. states. BMI was measured directly and other information was gathered by interview. Over half (59%, n = 270) were obese including 18% (n = 83) who were morbidly obese. In hierarchical ordinary least squares regression analysis controlling for demographic, psychiatric, medical, smoking, and health insurance statuses, women were significantly more likely to be obese than men. Obesity also was more likely among those who were younger and not high school graduates, those with diabetes or hypertension, and those who did not smoke tobacco. Interaction effects were found between gender and diabetes, hypertension, tobacco smoking, education, race, and age. The high prevalence of obesity among women, coupled with interactions between gender and other factors, suggest that targeted approaches are needed to promote optimal physical health in this population.
Keywords: Health disparities; Obesity and gender; Public mental health; Serious mental illness.