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


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


RESULTS
The reported mean TST was 7.76 h. 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.


CONCLUSIONS
Nationwide epidemiologic surveys in China are needed to further explore the relationship between sleep duration and sleep problems.
Beijing Anding Hospital, Capital Medical University, Beijing, China. xyutly@cuhk.edu.hk
Yu-Tao
YT
Xiang
Xin
X
Ma
Jin-Yan
JY
Lu
Zhuo-Ji
ZJ
Cai
Shu-Ran
SR
Li
Ying-Qiang
YQ
Xiang
Hong-Li
HL
Guo
Ye-Zhi
YZ
Hou
Zhen-Bo
ZB
Li
Zhan-Jiang
ZJ
Li
Yu-Fen
YF
Tao
Wei-Min
WM
Dang
Xiao-Mei
XM
Wu
Jing
J
Deng
Kelly Y C
KY
Lai
Gabor S
GS
Ungvari
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D002681:China; D015897:Comorbidity; D003431:Cross-Cultural Comparison; D003430:Cross-Sectional Studies; D005260:Female; D006306:Health Surveys; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000706:statistics & numerical data; D001523:Mental Disorders / Q000175:diagnosis / Q000453:epidemiology / Q000523:psychology; D008875:Middle Aged; D012424:Rural Population / Q000706:statistics & numerical data; D012737:Sex Factors; D012890:Sleep; D007319:Sleep Initiation and Maintenance Disorders / Q000175:diagnosis / Q000453:epidemiology* / Q000208:ethnology; D013223:Statistics as Topic; D014505:Urban Population / Q000706:statistics & numerical data; D055815:Young Adult