The prevalence of insomnia in the general population in China: A meta-analysis

• Published in: PloS one Vol. 12; no. 2; p. e0170772
• Main Authors: Cao, Xiao-Lan, Wang, Shi-Bin, Zhong, Bao-Liang, Zhang, Ling, Ungvari, Gabor S., Ng, Chee H., Li, Lu, Chiu, Helen F. K., Lok, Grace K. I., Lu, Jian-Ping, Jia, Fu-Jun, Xiang, Yu-Tao
• Format: Journal Article
• Language: English
• Published: United States Public Library of Science 24.02.2017; Public Library of Science (PLoS)
• Subjects: Adult; Adults; Age Factors; Aged; Aged, 80 and over; Asian Continental Ancestry Group; Biology and Life Sciences; China - epidemiology; Clinical trials; Confidence intervals; Data processing; Distribution; Epidemiology; Evaluation; Female; Humans; Insomnia; Lan Cao; Male; Medical ethics; Medicine and Health Sciences; Meta-analysis; Middle Aged; Older people; People and Places; Physical Sciences; Population (statistical); Prevalence studies (Epidemiology); Research and Analysis Methods; Sex Characteristics; Sleep disorders; Sleep Initiation and Maintenance Disorders - epidemiology; Sleep Initiation and Maintenance Disorders - pathology; Statistical analysis; Statistical analysis of data; Studies; Systematic review; China; Beijing China; Perth Western Australia Australia; Australia; United States > US; Macao
• ISSN: 1932-6203; 1932-6203
• DOI: 10.1371/journal.pone.0170772

This is the first meta-analysis of the pooled prevalence of insomnia in the general population of China. A systematic literature search was conducted via the following databases: PubMed, PsycINFO, EMBASE and Chinese databases (China National Knowledge Interne (CNKI), WanFang Data and SinoMed). Statistical analyses were performed using the Comprehensive Meta-Analysis program. A total of 17 studies with 115,988 participants met the inclusion criteria for the analysis. The pooled prevalence of insomnia in China was 15.0% (95% Confidence interval [CI]: 12.1%-18.5%). No significant difference was found in the prevalence between genders or across time period. The pooled prevalence of insomnia in population with a mean age of 43.7 years and older (11.6%; 95% CI: 7.5%-17.6%) was significantly lower than in those with a mean age younger than 43.7 years (20.4%; 95% CI: 14.2%-28.2%). The prevalence of insomnia was significantly affected by the type of assessment tools (Q = 14.1, P = 0.001). The general population prevalence of insomnia in China is lower than those reported in Western countries but similar to those in Asian countries. Younger Chinese adults appear to suffer from more insomnia than older adults. CRD 42016043620.