Document Classification

Section Type: RESULTS

Text: In an intent-to-treat analysis with baseline value substitution, mean weight loss was 7. 4 kg (95 % confidence interval [CI], 6. 1-8. 7 kg) or 7. 9 % (95 % CI, 6. 5 % -9. 3 %) of initial weight at 24 months for the center-based group, 6. 2 kg (95 % CI, 4. 9-7. 6 kg) or 6. 8 % (95 % CI, 5. 2 % -8. 4 %) for the telephone-based group, and 2. 0 kg (95 % CI, 0. 6-3. 3 kg) or 2. 1 % (95 % CI, 0. 7 % -3. 5 %) for the usual care control group after 24 months (P <. 001 for intervention effect).