Table 4.
Mediators of Maintenance Treatment Differences in Percentage Overweight Outcomes
| Mediator Variable and Treatment Contrast | Path Aa | Path Bb | Path Cc | Path Cd | Path AB (95% Cl)e | % Mediatedf |
|---|---|---|---|---|---|---|
| Monitoring and Goal Setting to Support Child | ||||||
| CONTROL vs LOW | 0.29g | -3.07g | -0.90 | -1.79g | -0.89 (−1.79 to-0.29) | 50 |
| CONTROL vs HIGH | 0.48g | -2.93g | -1.92g | -3.33g | -1.42 (−2.57 to-0.59) | 42 |
| Family and Home Environment to Support Child | ||||||
| CONTROL vs LOW | 0.09 | -2.42 | -1.51 | -1.72g | -0.21 (−0.78 ta 0.05) | NA |
| CONTROL vs HIGH | 0.15g | -5.7Sg | -2.38g | -3.25g | -0.88 (−1.66 to-0.34) | 27 |
| Healthy Child Behavior With Peers | ||||||
| CONTROL vs LOW | 0.14 | -1.86 | -1.72g | -1.98g | -0.25 (−1.03 to 0.03) | NA |
| CONTROL vs HIGH | 0.26g | -3.34g | -2.53g | -3.39g | -0.86 (−1.76 to-0.27) | 25 |
Abbreviations: CONTROL, weight management education condition; HIGH, 32 sessions of enhanced social facilitation maintenance; LOW, 16 sessions of enhanced social facilitation maintenance; NA, not applicable.
Path A is the effect of treatment on changes in the mediator variable from month 4 to month 12.
Path B is the effect of change in the mediator on change in the weight outcome.
Path C’ is the direct effect of treatment on weight outcome, when accounting for the mediated effect.
Path C is the total effect of treatment on the weight outcome.
Path AB is the product of paths A and B and represents the indirect (mediated) effect
Percentage mediated is the ratio of the indirect effect (path AB) to the total effect (path C) and is shown only for statistically significant indirect effects as determined by 95% CI.
P<.05.