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      Weight loss expectations in obese patients and treatment attrition: an observational multicenter study.

      Obesity research
      Adult, Age Factors, Body Image, Body Mass Index, Bulimia, Female, Forecasting, Goals, Humans, Italy, Male, Middle Aged, Motivation, Obesity, psychology, therapy, Prospective Studies, Regression Analysis, Time Factors, Treatment Refusal, Weight Loss

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          Abstract

          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. 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. 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. 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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          The assessment of binge eating severity among obese persons

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            The SCL-90 and the MMPI: a step in the validation of a new self-report scale.

            The present investigation was intended principally as a concurrent validation study for a new self-report symptom inventory: the SCL-90. A sample of 209 'symptomatic volunteers' served as subjects and were administered both the SCL-90 and the MMPI prior to participation in clinical therapeutic drug trials. The MMPI was scored for the Wiggins content scales and the Tryon cluster scales in addition to the standard clinical scales. Comparisons of the nine primary symptom dimensions of the SCL-90 with the set of MMPI scales reflected very high convergent validity for the SCL-90. Peak correlations were observed with like constructs on eight of the nine scales, with secondary patterns of correlations showing high interpretative consistency.
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              Confirmation of the dimensional structure of the scl-90: A study in construct validation

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