Table 5

 Proportion of each group that achieved 5% loss in body weight at programme end and one year follow-up

Intervention groupProgramme endOne year
Percentage (95% CI)Relative risk* (95% CI)Percentage (95% CI)Relative risk* (95% CI)
Weight Watchers46.0 (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 World35.0 (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 Conley42.0 (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 Down18.0 (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 practice15.7 (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)
Pharmacy21.4 (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)
Choice35.0 (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/comparator22.0 (14.3 to 31.4)1.017.0 (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.