Table 3.
Mean differences in changes between the ‘Get Healthy, Stay Healthy’ (GHSH) intervention (I; n=104) and control groups (C; n=114).
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|
Mean difference (GHSH – control)a |
Between-group interpretation | ||
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|
Mean (95% CI) | P |
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| Anthropometry | ||||
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Weight (kg) | − 1.35 (−2.25, −0.46) b | .003 | significantly better |
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Waist circumferencec(cm) | −1.18 (−2.65, 0.29) | .116 | inconclusive |
| Physical activity (PA) | ||||
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Vigorous PA (sessions/week)d | 0.15 (−0.34, 0.63) | .547 | inconclusive |
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Moderate PA (sessions/week)d | 0.55 (0.14, 0.96) | .008 | significantly better |
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Walking PA (sessions/week) | −0.69 (−1.46, 0.08) | .077 | inconclusive |
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Accelerometer PA (mins/week)e | 24.16 (5.07, 43.25) | .007 | significantly better |
| Dietary behaviors | ||||
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Vegetables (servings/day) | 0.15 (−0.21, 0.50) | .408 | inconclusive |
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Fruit (servings/day)d | 0.16 (−0.05, 0.37) | .133 | similar |
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Sweetened drinks (cups/day) | −0.05 (−0.19, 0.10) | .537 | similar |
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Takeaways (meals/week) | 0.01 (−0.15, 0.18) | .864 | similar |
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FFBQ Total Index Score (1–5) | 0.05 (−0.03,0.13) | .195 | similar |
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FFBQ Fat Index Score (1–5) | 0.02 (−0.07, 0.12) | .615 | similar |
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FFBQ Fiber Index Score (1–5) | 0.08 (−0.03, 0.19) | .147 | similar |
aMean difference (β) with 95% CI, and Pvalue from linear regression models, adjusted for baseline values of the outcome and confounders (listed in Multimedia Appendix 1).
bItalic values indicate statistical significance at P˂.05.
cn=102 GHSH group; n=112 control group (item missing data for waist circumference).
dn=103 GHSH group; n=114 control group (item missing data for vigorous PA, moderate PA and Fruit).
eEstimated using marginal means from GEE models of log-transformed daily MVPA (repeated term for “day”), adjusting for confounders, and correcting for regression to the mean using the method [37] of including the term for assessment (pre/post) and the assessment x group interaction, but not the conditional term for group. Estimates were back-transformed to the original scale, then multiplied by 7 to yield minutes per week. n=112 GHSH group; n=114 control group (all participants with data at either time point examined).