Table 5.
 Proportion of each group that achieved 5% loss in body weight at programme end and one year follow-up
| Intervention group | Programme end | One year | |||
|---|---|---|---|---|---|
| Percentage (95% CI) | Relative risk* (95% CI) | Percentage (95% CI) | Relative risk* (95% CI) | ||
| Weight Watchers | 46.0 (36.0 to 56.3) | 2.98 (1.56 to 5.66) | 31.0 (22.1 to 41.0) | 2.10 (1.03 to 4.28) | |
| Slimming World | 35.0 (25.7 to 45.2) | 1.56 (0.81 to 3.01) | 21.0 (13.5 to 30.3) | 1.22 (0.57 to 2.60) | |
| Rosemary Conley | 42.0 (32.2 to 52.3) | 2.72 (1.42 to 5.23) | 26.0 (17.7 to 35.7) | 1.81 (0.87 to 3.74) | |
| NHS Size Down | 18.0 (11.0 to 26.9) | 0.63 (0.30 to 1.33) | 21.0 (13.5 to 30.3) | 1.39 (0.66 to 2.93) | |
| General practice | 15.7 (8.1 to 26.4) | 0.62 (0.27 to 1.41) | 15.7 (8.1 to 26.4) | 0.94 (0.40 to 2.22) | |
| Pharmacy | 21.4 (12.5 to 32.9) | 0.87 (0.39 to 1.94) | 14.3 (7.1 to 24.7) | 0.95 (0.39 to 2.30) | |
| Choice | 35.0 (25.7 to 45.2) | 1.81 (0.94 to 3.49) | 28.0 (19.5 to 37.9) | 2.01 (0.98 to 4.11) | |
| Exercise/comparator | 22.0 (14.3 to 31.4) | 1.0 | 17.0 (10.2 to 25.8) | 1.0 | |
Analyses use baseline observation carried forward.
*Adjusted for physical activity at baseline, weight at baseline, age, sex, and ethnic group.