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Table 1 Final sample sizes for a 35% decrease in depression incidence/relapse at 3 conservative levels of depression onset

From: Sleep to Reduce Incident Depression Effectively (STRIDE): study protocol for a randomized controlled trial comparing stepped-care cognitive-behavioral therapy for insomnia versus sleep education control to prevent major depression

CBT-I/dCBT-I

Control

n per group

8.0%

14.4%

n = 453

8.5%

15.3%

n = 423

9.0%

16.2%

n = 405

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Trials

ISSN: 1745-6215