Table 3.
Multilevel Regression Outcomes: Phase 1 (Baseline to 3 months) and Phase 2 (3- to 6- months).
| N = 67 |
Intervention n = 33 (Received Fit&Trim @ P1) |
Waitlist Control n = 34 (Received Fit&Trim @ P2) |
Cross-level Interactions (95% CI) | Cohen d | |||
|---|---|---|---|---|---|---|---|
| Estimated |
Estimated |
||||||
| Outcome measures | Mean | Simple Slope (95%CI)c | Mean | Simple Slope (95% CI)c | |||
| Weight (%) | P1 - BL | −0.32 | −0.31 | ||||
| P1-3Mod | −4.62 | −1.4 (-1.9, -.92)a | −1.19 | - 0.29 (−.63, .05) a | −1.1 (-1.7, -0.53) | ||
| P2-3Mod | −4.40 | −1.31 | |||||
| P2—6Mo | −5.55 | −0.38 (-.71, -.06)b | −6.08 | - .75 (-.92, -.58)b | −1.6 (-2.10, -1.09) | ||
| Weight (kg) | P1 - BL | 82.78 | 79.81 | ||||
| P1-3Mod | 79.39 | −1.1 (-1.56, -.70)a | 78.99 | -.28 (-.54, -0.01)a | −0.85 (-1.4, -0.35) | 0.93 | |
| P2-3Mod | 78.85 | 78.90 | |||||
| P2—6Mo | 77.87 | −0.33 (-.62, -.03)b | 75.24 | −1.2 (-1.6, -.81)b | −0.90 (-1.4, -0.39) | ||
| Body Mass Index (kg/m2) | BL | 30.53 | 30.46 | ||||
| P1b | 29.27 | −1.2 (-1.76, -.81) | 30.15 | - 0.32 (- .66, -.02) | −0.93 (-1.5, -0.40) | ||
| P2b | 28.91 | - .37 (-.69, -.07) | 28.75 | −1.4 (-1.9, - .93) | −1.0 (-1.6, -0.47) | ||
| Waist Circumference (cm) | BL | 99.65 | 98.29 | ||||
| P1b | 93.53 | −6.1 (-8.4, -4.2) | 97.06 | −1.2 (−2.5, .01) | −4.9 (-7.5, -2.6) | ||
| P2 | 93.30 | - .22 (−1.4, 1.1) | 92.52 | −4.5 (-6.8, -2.3) | −4.3 (-6.8, -1.8) | ||
| Fasting Plasma Glucose (mg/dl) | BL | 89.58 | 92.08 | ||||
| P1b | 88.68 | -.90 (−4.5, 3.2) | 92.54 | .45 (−2.5, 3.1) | −1.4 (−5.9, 3.6) | ||
| P2b | 91.39 | 2.7 (−1.0, 7.7) | 91.34 | −1.2 (−3.3, .88) | 3.9 (−0.3, 9.3) | ||
| A1c (%) | BL | 5.815 | 5.876 | ||||
| P1b | 5.738 | - .08 (- .17, .003) | 5.900 | .02 (- .04, .08) | -.10 (−.21, .002) | ||
| P2b | 5.739 | .001 (−.07, .07) | 5.811 | -.09 (- .16, .02) | -.09 (−.19, .008) | ||
Bolded numbers = Statistical significance indicated by NO “0” in 95% CI; BL=Baseline; P1 = Phase 1; P2 = Phase 2 a = Estimated Simple Slope BL to 3Mo; b = Estimated Simple Slope 3Mo to 6Mo; c = Nonparametric bias corrected bootstrapped 95% CI Cross-level interaction = between group difference in simple slopes; d = slightly different means were used for P1- and P2—3Mo Simple Slope weight (kg and %) regression analysis to accommodate all seven monthly data points from baseline to 6 Mo.