Table 3.
Estimates of Monthly Change in Outcome in Treatment and Control Groups
| Characteristic | Control group rate of change |
Treatment group rate of change |
pa | pb | Group effect size at 6 months |
|---|---|---|---|---|---|
| Clinical Variables | |||||
| Percent Change in Weight | 0.13 | −0.42 | .45 | .08 | 0.33 |
| HOMA** | 0.02 | 0.01 | .11 | .61 | 0.14 |
| Glucose 120 minutes (mg/dl) | 1.50 | 0.28 | .30 | .48 | 0.03 |
| Insulin 120 minutes (μU/ml) ** | 0.01 | −0.03 | .59 | .29 | 0.05 |
| LDL (mg/dl) | −0.14 | 0.07 | .94 | .87 | 0.28 |
| HDL (mg/dl) | 0.17 | 0.60 | .03 | .21 | 0.24 |
| BMI (kg/m2) | −0.02 | −0.03 | .55 | .97 | 0.11 |
| Waist (inches) | −0.03 | −0.19 | .33 | .35 | 0.28 |
| Behavioral Variables | |||||
| Physical Activity | 0.05 | 0.10 | <.0001 | .08 | 0.24 |
| Nutrition | 0.04 | 0.03 | .001 | .63 | 0.02 |
| CES-D (range 0-60) | −0.01 | −0.34 | .40 | .42 | 0.01 |
Notes.
**
Log-Transformed for Analysis
a
p-value for main effect of time (month) across both groups
b
p-value for interaction of treatment and time (month)
HOMA = Homeostasis model assessment; LDL = low density lipoprotein; HDL = high density lipoprotein; BMI = body mass index; CES-D = Center for Epidemiologic Studies-Depression Scale