Mean weight difference compared with Weight Watchers at 3 and 12 months
| Weight change baseline to 3 months, kg (SD) | Unadjusted mean weight difference at 3 months, kg (95% CI) | Adjusted mean weight difference at 3 months, kg (95% CI) | Weight change baseline to 12 months, kg (SD) | Unadjusted mean weight difference at 12 months, kg (95% CI) | Adjusted mean weight difference at 12 months, kg (95% CI) | |
|---|---|---|---|---|---|---|
| Weight Watchers (constant) | −4.2 (4.1) | 0.0 | 0.0 | −3.7 (6.4) | 0.0 | 0.0 |
| NHS programme | −1.6 (2.2) | 2.6 (2.0 to 3.1) | 2.6 (2.1 to 3.2) | −2.5 (4.2) | 1.2 (0.3 to 2.1) | 1.2 (0.3 to 2.1) |
| Rosemary Conley | −3.3 (3.7) | 0.9 (0.6 to 1.2) | 0.7 (0.4 to 1.0) | −3.1 (5.6) | 0.6 (0.0 to 1.1) | 0.2 (−0.4 to 0.7) |
| Slimming World | −4.0 (3.9) | 0.2 (−0.1 to 0.5) | 0.3 (0.01 to 0.6) | −4.5 (7.0) | −0.8 (−1.4 to −0.3) | −0.7 (−1.2 to −0.2) |
SD = standard deviation.