Table 3 Outcome of a-priori and post-hoc, sensitivity analyses examining effect of exposure to lifestyle intervention on weight outcomes (primary aims 1 and 2).
Analysis | A-priori | A-priori | Post-hoc, sensitivity | Post-hoc, sensitivity |
|---|---|---|---|---|
Outcome variable | Monthly change in weight | Monthly change in weight | Raw weight | Raw weight |
Time-frame | Stepped-wedge only | Stepped-wedge and 12-month follow-up | Stepped-wedge only | Stepped-wedge and 12-month follow-up |
Coefficient (exposure to lifestyle intervention) | 1.8 (favors intervention) kg loss per month more during intervention period than control period | 1.9 (favors intervention) kg loss per month more during intervention period than control period | −2.7 (favors intervention) difference in mean weight measurements during intervention period than control period | −3.7 (favors intervention) difference in mean weight measurements during intervention period than control period |
95% CI | 1.2–2.4 | 1.3–2.5 | −1.7 to −3.6 | −2.6 to −4.8 |
p-value | <0.001 | <0.001 | <0.001 | <0.001 |
ICC | 0.07 | 0.06 | 0.98 | 0.97 |
Observations | 297 | 492 | 386 | 600 |
Participants | 56* | 56* | 59 | 59 |
