Gender Differences in the Relationship between Social Jet Lag, Depression, and Obesity in Korean Children and Adolescents.
- Author:
Hye Ra RYU
1
;
In Yeong KIM
;
Sooyeon SUH
Author Information
- Publication Type:Original Article
- Keywords: Social jet lag; Korean Children & Youth Panel Survey; Depression; Obesity
- MeSH: Adolescent*; Body Mass Index; Child*; Cohort Studies; Depression*; Female; Humans; Obesity*
- From:Journal of Sleep Medicine 2015;12(2):39-46
- CountryRepublic of Korea
- Language:Korean
- Abstract: OBJECTIVES: A majority of South Korean adolescents experience chronic sleep-deprivation due to social jet lag. In this study, we investigated gender differences in the relationship between social jet lag, depression, and obesity in Korean children and adolescents. METHODS: Our sample consisted of 4,380 adolescents (elementary school cohort n=2,141, middle school cohort n=2,239) who participated in the Korean Children and Youth Panel Survey. In order to analyze the gender differences in the relationship between sleep time difference, obesity and depression, t-test and chi-square test were utilized. RESULTS: Both cohorts revealed that the difference in weekday/weekend sleep duration (2.19+/-1.42 vs. 1.68+/-1.36, p<0.001) and depression levels (20.77+/-6.29 vs. 18.87+/-6.06, p<0.001) was significantly higher in girls than boys. However, body mass index was higher in boys than girls (20.86+/-3.42 vs. 20.04+/-2.51, p<0.001). Chi-square test revealed there was a significant difference between gender and weekday/weekend sleep discrepancy group (cutoff >2 hours). Both elementary school [chi2 (1)=8.73, p<0.05] and middle school cohorts [chi2 (1)=61.29, p<0.001] showed significant gender differences. CONCLUSIONS: There were especially more girls who reported a discrepancy of 2 or more hours of weekday/weekend sleep duration. In summary, intervention for social jet lag may be important to consider in adolescents.
