Sex differences in sleep patterns and changes in 7th to 12th graders: a longitudinal follow-up study in Taiwan.

Autor:	Lin LN; Department of Psychiatry, En Chu Kong Hospital, New Taipei City, Taiwan.; Department of Psychology, Chung Yuan Christian University, Taoyuan City, Taiwan.; Department of Nursing, Yuanpei University of Medical Technology, Hsinchu City, Taiwan.; Center for General Education, National Taipei University, New Taipei City, Taiwan., Chang LY; Institute of Health Behaviors and Community Sciences, College of Public Health, National Taiwan University, Taipei City, Taiwan., Hurng BS; Department of Public Health, Chung Shan Medical University, Taichung City, Taiwan., Wu CC; Institute of Population Health Sciences, National Health Research Institutes, Zhunan Town, Miaoli County, Taiwan., Yen LL; Institute of Population Health Sciences, National Health Research Institutes, Zhunan Town, Miaoli County, Taiwan.; Institute of Health Policy and Management, College of Public Health, National Taiwan University, Taipei City, Taiwan., Chang HY; Institute of Population Health Sciences, National Health Research Institutes, Zhunan Town, Miaoli County, Taiwan.; Institute of Public Health, National Yangming University, Taipei City, Taiwan.
Jazyk:	angličtina
Zdroj:	Sleep [Sleep] 2018 Mar 01; Vol. 41 (3).
DOI:	10.1093/sleep/zsx211
Abstrakt:	Study Objectives: To assess the relationship between sex and the development of sleep patterns in adolescents from grade 7 to 12. Methods: We analyzed longitudinal data from annual school-based assessments of sleep habits among secondary school students in northern Taiwan. Measures of sleep patterns included sleep length on weekdays and weekends as well as weekend-weekday difference (WndD), defined as the discrepancy in the time in bed (TIB) between weekdays and weekends. Growth curve models were used to assess sex differences in sleep patterns. Associations between other covariates and sleep patterns were also explored. Results: We found shorter weekday TIB in girls compared with boys at all time points. In contrast, girls had longer weekend TIB than boys over time except in the 12th grade. WndD was also longer in girls than boys. All interaction terms between sex and time were insignificant, indicating that developmental change across time was not statistically different for boys and girls. Several other factors, namely, parental education, pubertal development, self-perceived health, weight status, depressive symptoms, academic stress, infrequent exercise, and substance use, were also found to be associated with sleep patterns. Conclusions: Our findings show a sex difference in TIB both on weekdays and weekends. No sex difference was found in the development of sleep patterns over time.
Databáze:	MEDLINE
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