Season of Birth, Sex and Sleep Timing Preferences
AbstractObjective: To evaluate whether the season of birth and sex are associated with preferences for bedtime among Chinese adults. Methods: A national population-based study on sleep preferences was conducted among Chinese in 2008. A questionnaire was used to collect information on the sleep time of Chinese adults. Analysis of covariance was used to examine the relationship between season of birth and preferences for bedtime. Two sets of potential confounders were used in the adjusted models. Model 1 adjusted for age. Model 2 additionally adjusted for area, occupation, education level, smoking, and drinking. Participants and Measurements: The questionnaire was administered to a sample of 3959 Chinese adults. Results: Men had a higher delayed mean sleep onset and offset time (22:38 and 6:32) than women (22:18 and 6:25). Men also slept for a shorter duration compared to women (7 h 54 min vs. 8 h 7 min). Women born in fall had the latest sleep onset time sleep offset time (22:23/6:30), compared to their counterparts born in winter. These associations were attenuated by additional adjustments of more confounders. Conclusions: There were significant differences in sleep timing preferences between men and women. Season of birth was not associated with sleep timing in Chinese adults. View Full-Text
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Huang, Y.; Lin, D.; Lu, C.; Ali, G.; Metzger, J.; Shankar, N.; Xu, T.; Sun, W.; Shan, G. Season of Birth, Sex and Sleep Timing Preferences. Int. J. Environ. Res. Public Health 2015, 12, 5603-5613.
Huang Y, Lin D, Lu C, Ali G, Metzger J, Shankar N, Xu T, Sun W, Shan G. Season of Birth, Sex and Sleep Timing Preferences. International Journal of Environmental Research and Public Health. 2015; 12(5):5603-5613.Chicago/Turabian Style
Huang, Yuee; Lin, Dongdong; Lu, Chuanwen; Ali, Gholam; Metzger, James; Shankar, Nivedita; Xu, Tan; Sun, Wenjie; Shan, Guangliang. 2015. "Season of Birth, Sex and Sleep Timing Preferences." Int. J. Environ. Res. Public Health 12, no. 5: 5603-5613.