Obesity and depression are often comorbid conditions. There appears to be a bidirectional relationship between these. Obesity at baseline has been shown to increase the risk of onset of depression and depression at baseline increased the odds for developing obesity. Less is understood about the impact of obesity on depression treatment outcomes. The authors’ hypothesis was that obesity (body mass index [BMI] ≥30 kg/m 2 ) and morbid obesity (BMI ≥ 40 kg/m 2 ) would each have negative effects on depression remission rates after 6 months of enrollment into collaborative care management for depression. In a retrospective analysis of 1111 depressed patients with a PHQ-9 (Patient Health Questionnaire) score of 10 or greater, multivariate analysis for the odds ratio of achieving remission at 6 months demonstrated that the patient’s BMI at baseline was not an independent risk factor for depression outcome at 6 months. Collaborative care management for depression has been shown to be effective for improving depression outcomes, yet minimal prior research has focused on other clinical comorbidities that might affect outcomes. Although obesity was common in the study population, it was reassuring, based on this study that 6-month depression treatment outcomes do not appear to be significantly affected by the patient’s baseline BMI.
Limited stair-climbing ability and weight control in family medicine patients
Objective: To assess the association between self-assessed stair-climbing limitation and weight control among family medicine patients, after adjustment for age, gender, marital status, body mass index (BMI), and co-morbidity. Methods: This study was a retrospective analysis of a cohort of 840 adult family medicine patient records drawn from a large family medicine department in Rochester, Minnesota. Weight control was measured as no change or decline in BMI over approximately 1 year. Results: Adjusting for co-morbidity and other confounders using multiple logistic regression analysis revealed that limited stair-climbing ability was unrelated to weight control over approximately 1 year. Instead, patients with BMI ≥ 30 were more likely to control their weight (p<0.01), and age exhibited a non-linear relationship with weight control. The odds of weight control were lower for patients between the ages of 36 and 45 years than for those aged 18—35 years (p<0.01). Conclusions: In our sample of family medicine patients, self-assessed stair-climbing limitations did not preclude weight control. Weight gain prevention programmes might be targeted at patients who are entering middle age.