These contrast analyses showed that the percent change between baseline and week 12 (4.0% in the intervention group vs 1.0% in the control group) did not reach statistical significance ( t = 1.64, p = 0.101, d = 0.132) but was statistically significant for the difference between baseline and week 52 (4.0% in the intervention vs −2.0% in controls; t = 3.30, p = 0.001, d = 0.285).
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LEAP! Rx: A randomized trial of a pragmatic approach to lifestyle medicine.
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