A Chinese chan-based mind-body intervention improves sleep on patients with depression: a randomized controlled trial.

The reduction in the CBT group was significant ( t (8) = 2.98, P = 0.01, 95% CI = 4.66 to 36.45), and that in the DMBI group approached significance ( t (5) = 1.96, P = 0.05, 95% CI = −7.11 to 52.78), with a large effect size for both groups (DMBI = 0.80; CBT = 0.99).

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Although the reduction did not reach statistical significance, the effect size for the CBT group was 1.00 which was large, and that of DMBI group was 0.57, which was medium.

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