Table 2.
Baseline and follow-up anthropometric outcomes, by treatment group
| Control group | Phone group | Internet group | ||||||
| Baseline | Follow-up | Baseline | Follow-up | Change vs. control (95% CI) | Baseline | Follow-up | Change vs. control (95% CI) | |
| Imputed datasetsa | n = 457 | n = 459 | n = 458 | |||||
| Body weight (SD), kg | 92.9 (13.6) | 91.7 (13.8) | 93.4 (14.1) | 90.7 (13.7) | -1.5*** (-2.2; -0.8) | 92.8 (14.3) | 91.0 (14.2) | -0.6* (-1.3; -0.01) |
| Completers | n = 321 | n = 332 | n = 329 | |||||
| Body weight (SD), kg | 92.0 (13.2) | 91.0 (13.4) | 93.5 (14.3) | 90.8 (14.0) | -1.6*** (-2.2; -1.0) | 91.9 (14.2) | 89.8 (14.1) | -1.1*** (-1.7; -0.5) |
| ≥5% weight loss, No. (%) | - | 34 (10.6) | - | 91 (27.4) | - | - | 71 (21.6) | - |
| ≥3% weight gain, No. (%) | - | 26 (8.1) | - | 20 (6.0) | - | - | 18 (5.5) | - |
| n = 231 | n = 236 | n = 235 | ||||||
| Waist circumference (SD), cm | 101.5 (9.8) | 99.5 (10.0) | 102.6 (10.0) | 98.6 (10.3) | -1.9*** (-2.7; -1.0) | 101.5 (10.3) | 98.2 (10.2) | -1.2** (-2.1; -0.4) |
aAll participants except those that became pregnant during the course of the study.* p < 0.05, ** p < 0.01, *** p < 0.001