For the BDI-II, the between-group effect failed to reach statistical significance in the per-protocol analysis ( F 1,77 =0.81, P =.37, d =0.25, CI −0.18 to 0.65).
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Effectiveness of a Web-Based Intervention in Reducing Depression and Sickness Absence: Randomized Controlled Trial.
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0.3700
0.3700
The sentences
However, because of the low response and high attrition in this study, one primary outcome did not reach statistical significance among participants who completed the intervention (per-protocol analysis) and at follow-up, only within-group changes were sustained but the intervention effect was not.