Efficacy of cognitive behavioral therapy for insomnia (CBT-I) in older adults with insomnia: A systematic review and meta-analysis

Objectives: The aim is to evaluate the efficacy of cognitive behavioral therapy for insomnia (CBT-I) in older adults. We searched six databases to identify articles published in English or Chinese until January 30(th), 2022. Methods: The two authors of the review independently selected the studies, assessed the risk of bias, and extracted the data. Fourteen studies were included. Results: Based on the results from sleep logs, a significant pooled effect size was observed for sleep efficiency (SE%) (MD = 8.36; 95% CI, 5.96-10.76; I- 2 = 77%; p < .00001), sleep onset latency (SOL) (MD = -9.29; 95% CI, -13.62 to -4.96; I- 2 = 64%; p < 0.0001), wake after sleep onset (WASO) (MD = -23.44; 95% CI, -32.41 to -14.47; I- 2 = 85%; p < .00001), and total sleep time (TST) (MD = -12.35; 95% CI, -21.27 to -3.42; I- 2 = 63%; p = 0.007). Conclusions: Our study suggests that CBT-I may be a safe and effective approach for improving insomnia in older adults.