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Multicenter Study
. 2005 Nov;13(11):1961-9.
doi: 10.1038/oby.2005.241.

Weight Loss Expectations in Obese Patients and Treatment Attrition: An Observational Multicenter Study

Free article
Multicenter Study

Weight Loss Expectations in Obese Patients and Treatment Attrition: An Observational Multicenter Study

Riccardo Dalle Grave et al. Obes Res. .
Free article


Objective: To investigate the influence of weight loss expectations (expected 1-year BMI loss, dream and maximum acceptable BMI) on attrition in obese patients seeking treatment.

Research methods and procedures: Obese subjects (1,785; 1,393 women; median age, 46 years; median BMI, 36.7 kg/m(2)) seeking treatment in 23 medical Italian centers were evaluated. Baseline diet and weight history, weight loss expectations, and primary motivation for seeking treatment (health or improving appearance) were systematically recorded. Psychiatric distress, binge eating, and body image dissatisfaction were tested at baseline by self-administered questionnaires (Symptom Check List-90, Binge Eating Scale, and Body Uneasiness Test). Attrition and BMI change at 12 months were prospectively recorded.

Results: At 12 months, 923 of 1,785 patients (51.7%) had discontinued treatment. Compared with continuers, drop-outs had a significantly lower age, a lower age at first dieting, lower dream BMI, a higher expected 1-year BMI loss, and a higher weight phobia. At logistic regression analysis, the strongest predictors of attrition at 12 months were lower age and higher expected 1-year BMI loss. The risk of drop-out increased systematically for unit increase in expected BMI loss at 12 months (hazard ratio, 1.12; 95% confidence interval, 1.04 to 1.20; p = 0.0018). The risk was particularly elevated in the first 6 months.

Discussion: Baseline weight loss expectations are independent cognitive predictors of attrition in obese patients entering a weight-losing program; the higher the expectations, the higher attrition at 12 months. Unrealistic weight goals should be tackled at the very beginning of treatment.

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