Relationships of sleep duration with sleep disturbances, basic socio-demographic factors, and BMI in Chinese people

Xiang, Yu-Tao; Ma, Xin; Lu, Jin-Yan; Cai, Zhuo-Ji; Li, Shu-Ran; Xiang, Ying-Qiang; Guo, Hong-Li; Hou, Ye-Zhi; Li, Zhen-Bo; Li, Zhan-Jiang; Tao, Yu-Fen; Dang, Wei-Min; Wu, Xiao-Mei; Deng, Jing; Lai, Kelly Y.C.; Ungvari, Gabor S.

doi:10.1016/j.sleep.2009.03.002

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Volume 10, Issue 10 , Pages 1085-1089, December 2009

Relationships of sleep duration with sleep disturbances, basic socio-demographic factors, and BMI in Chinese people

Yu-Tao Xiang
- Beijing Anding Hospital, Capital Medical University, Beijing, China
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
- Corresponding authors. Address: Department of Psychiatry, Shatin Hospital, Shatin, N.T., Hong Kong SAR, China. Tel.: +852 2636 7748; fax: +852 2647 5321.
Xin Ma
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Jin-Yan Lu
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
Zhuo-Ji Cai
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Shu-Ran Li
- Institute of Mental Health, Peking University, Beijing, China
Ying-Qiang Xiang
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Hong-Li Guo
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Ye-Zhi Hou
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Zhen-Bo Li
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Zhan-Jiang Li
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Yu-Fen Tao
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Wei-Min Dang
- Institute of Mental Health, Peking University, Beijing, China
Xiao-Mei Wu
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Jing Deng
- Beijing Anding Hospital, Capital Medical University, Beijing, China
Kelly Y.C. Lai
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China
Gabor S. Ungvari
- Department of Psychiatry, Chinese University of Hong Kong, Hong Kong SAR, China

Received 7 January 2009; received in revised form 5 March 2009; accepted 9 March 2009.

Abstract

Objective

This study aimed at determining the mean total sleep time (TST) and the relationship between sleep duration and basic socio-demographic factors and BMI sleep problems in Chinese subjects.

Method

A total of 5926 subjects were randomly selected and interviewed using standardized assessment tools.

Results

The reported mean TST was 7.76h. Short sleepers were significantly older than medium and long sleepers. There were more urban residents who were short sleepers than medium and long sleepers. Short sleepers reported more sleep problems than medium and long sleepers. Short and long sleepers reported more psychiatric disorders than medium sleepers in both sexes, and short sleepers also had more major medical conditions in women. Short sleepers had a lower BMI than medium and long sleepers after controlling for the effects of age and psychiatric disorders in women.