TABLE 1.
Changes in the Primary Outcomes Before and After the Intervention
Variable | Preintervention Estimate (SE) | Postintervention Estimate (SE) | Intervention-Control Difference in Trajectory Estimate (SE) |
Weight (pounds) | |||
Intervention group | 215.7 (1.9) | 213.7 (1.9) | −3.4 (1.4)* |
Control group | 214.8 (1.6) | 216.1 (1.6) | |
BMI (kg/m2) | |||
Intervention group | 33.9 (0.3) | 33.4 (0.3) | −0.60 (0.18)** |
Control group | 33.7 (0.2) | 33.9 (0.2) | |
Fasting blood glucose (mg/dL) | |||
Intervention group | 95.2 (1.0) | 93.7 (0.9) | −2.6 (1.1)* |
Control group | 96.4 (0.8) | 97.5 (0.8) | |
Reduction in BMI category (%) | |||
Intervention group | 22%** | ||
Control group | 15% |
Estimates combined from 10 generalized estimating equations (GEE) fitted to multiple imputed datasets. Models adjusted for age and sex, which were mean-centered.
BMI, body mass index; SE, standard error.
*P = 0.05.
**P = 0.001.