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[Prevalence of depression and anxiety in a cohort of 761 obese patients: impact in adherence to therapy and its outcome].

OBJECTIVE
To determine the prevalence of psychiatric disorders in 761 obese patients, prospectively assessing their impact in both adherence to therapy and its outcome.


MATERIAL AND METHODS
Overweight and obesity were defined by body mass index (BMI), depression and anxiety according to "The Hospital Anxiety and Depressio Scale". Patients received a physical and biochemical evaluation, a hypochaloric diet and a training plan. Sibutramine was prescribed as anti-obesity drug.


RESULTS
The mean age was 31,28 (SD 11,26) years. 74.77% were women. The mean weight was 91.36 kg with a BMI of 34,49 Kg/m2 (SD 6,29). The prevalence of possible, probable and definite anxiety/depression was: 56.3%/22.0%, 29.8%/6.2%, and 7.2%/0.8% respectively. Both initial and final weight and BMI were higher in definite and probable depression respectively, with a minor percentage of weight loss likewise.


CONCLUSIONS
The studied psychiatric disturbances were prevalent in our population. Initial and final weight and BMI were higher in groups with more severe anxiety or depression. The percentage of weight loss and adherence to therapy were greater in groups of milder psychiatric disorders.