Table 5 Summary of characteristics and results at 6 and 12Â months for the included non-equivalent groups design trials
Study (Year) | Participants | Interventions | Follow-up (months) | Weight*/BMI** | Intervention group | Control group | Between-group significance | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Pre mean | Post mean | Mean difference | Pre mean | Post mean | Mean difference | ||||||
Bjorkelund 1991 [22] | Location: Sweden Setting: Community | Allocated: (a) 22 (b) 27 (c) 16 | 6 | Wt | |||||||
a. | 88.1 (9.8) | NR | −3.98 (3.92) | 87.3 (9.6) | NR | −1.77 (3.31) | p < 0.05 | ||||
b. | 70.2 (7.7) | NR | −2.83 (2.46) | 70.9 (7.6) | NR | −0.42 (2.55) | p < 0.001 | ||||
c. | 90.6 (9.0) | NR | −2.87 (3.65) | 88.8 (14.8) | NR | −1.41 (4.79) | NS | ||||
Risk factor: Nil | % dropout (at 6Â months): (a) 0 (b) 4 (c) 6 | BMI | |||||||||
a. | 33.0 (3.0) | NR | −1.50 (1.60) | 33.2 (3.5) | NR | −0.65 (1.28) | p < 0.05 | ||||
b. | 26.4 (1.8) | NR | −1.03 (0.95) | 26.4 (2.5) | NR | −0.11 (0.96) | p < 0.001 | ||||
c. | 33.9 (3.1) | NR | −1.04 (1.31) | 33.4 (3.2) | NR | −0.51 (1.88) | NS | ||||
Sex: all women | Comparison: Participants vs. non-participants of the intervention program, each in 3 groups: a. BMI ≥ 30 & W/H ratio < 0.82 b. BMI < 30 & W/H ratio ≥ 0.82 c. BMI ≥ 30 & W/H ratio ≥ 0.82 | ||||||||||
Age, range: 45-64 | |||||||||||
Rohrer 2008 [29] | Location: USA Setting: PHC | Allocated: (a) 71 (b) 55 | 12 | Wt$ | NR | NR | −18.8 (15.7) | NR | NR | 0.87 (5.9) | p < 0.001 |
Risk factor: Nil | % dropout: (a) 18.4 (b) 18.2 | ||||||||||
Sex: (a) 50 women, 21 men (b) 38 women, 17 men | Comparison: Intensive structured vs. less intensive | ||||||||||
Age, mean (SD): (a) 45.3 (11.6) (b) 48.9 (9.4) | |||||||||||