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Regional differences in the risk of insomnia symptoms among patients from general hospital outpatient clinics

Authors Zheng W, Luo XN, Li HY, Ke XY, Dai Q, Zhang CJ, Zhang XY, Ning YP

Received 16 August 2018

Accepted for publication 31 October 2018

Published 30 November 2018 Volume 2018:14 Pages 3307—3315


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 3

Editor who approved publication: Dr Roger Pinder

Wei Zheng,1 Xin-Ni Luo,1 Hai-Yan Li,1 Xiao-Yin Ke,1 Qing Dai,1 Chan-Juan Zhang,1 Xiang-Yang Zhang,1,2 Yu-Ping Ning1

1The Affiliated Brain Hospital of Guangzhou Medical University (Guangzhou Huiai Hospital), Guangzhou, China; 2Department of Psychiatry and Behavioral Sciences, The University of Texas Health Science Center at Houston, Houston, TX, USA

Background: Region-specific differences in the prevalence of insomnia symptoms in outpatient clinics in China have received little systematic study. This study was conducted preliminarily to examine region-specific differences in the risk of insomnia symptoms in Chinese outpatients.
Method: In total, 4,399 adult outpatients (urban vs rural residents: 1,768 vs 2,631) who completed three questions focusing on insomnia symptoms were included. Their sociodemographic and clinical information were collected with standardized questionnaires.
Results: The prevalence of self-reported insomnia symptoms in urban residents (23.4%) was more frequent than the prevalence in rural residents (21.2%). The estimated prevalence of insomnia symptoms was significantly lower in rural than urban residents after adjusting for the potential confounders (P=0.015). Similarly, more urban (22.9%) than rural (13.4%) residents with insomnia symptoms had significantly higher treatment rates (χ2=14.9, P<0.001). Multiple regression analyses showed that depressive symptoms, old age, and low education level were the most common risk factors for insomnia symptoms in both urban and rural residents.
Conclusion: Our findings show that the prevalence of insomnia symptoms was relatively lower in rural than urban residents. Longitudinal studies are warranted to confirm the current findings.

Keywords: insomnia symptoms, regional differences, China, outpatients

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