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  • Title: Weight loss and long-term follow-up of severely obese individuals treated with an intense behavioral program.
    Author: Anderson JW, Grant L, Gotthelf L, Stifler LT.
    Journal: Int J Obes (Lond); 2007 Mar; 31(3):488-93. PubMed ID: 16819530.
    Abstract:
    OBJECTIVE: To review weight loss and maintenance for severely obese individuals enrolled in intensive behavioral weight loss program using very-low or low-energy diets. DESIGN: Chart review of consecutively treated patients between 1995 and 2002 seen at three weight loss centers. SUBJECTS: One thousand five hundred and thirty one patients with severe obesity (>or=40 kg/m(2)) treated in three cities ('Study Group'). Of these, 1100 completed the 12-week core curriculum ('Completer Group'). Weight loss >or=100 lbs (>45 kg) was seen in 268 patients ('100-Pound Group'). MEASUREMENTS: Charts were reviewed for baseline characteristics, weekly weights, follow-up weights and side effects. RESULTS: In the Study Group, average weight loss+/-s.e. for 998 women was 23.9+/-0.6 kg (18.5% of initial body weight (IBW)) and for 533 men was 36.0+/-1.0 kg (22.5%) over 30 weeks. For Completers, average weight loss for women was 30.8+/-0.6 kg (23.9%) and for men was 42.6+/-1.1 kg (26.7%) over 39 weeks. In the 100-Pound Group, average weight loss for women was 58.2+/-1.2 kg (41.5%) in 65 weeks and for men was 65.7+/-1.5 kg (37.5%) in 51 weeks. Side effects, assessed in 100 patients losing >45 kg, were mild to moderate in severity. Severe adverse events unrelated to the diet were noted in 5% of patients and during weight loss 1% had elective cholecystectomies. Follow-up weights were available for 86% of Completers at an average of 72 weeks with average maintenance of 23 kg or 59% of weight loss; follow-up weights were available for 94% of the 100-Pound Group at an average of 95 weeks with average maintenance of 41 kg or 65% of weight loss maintained. CONCLUSIONS: Intensive behavioral treatment with meal replacements is a safe and effective weight-loss strategy for selected severely obese individuals.
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