청소년 비만은 전 세계적인 문제이다(Larson & Stomy, 2008). 따라서 비만의 위험요인에 초점을 맞춘 연구들을 쉽게 찾아볼 수 있다. 특히, 최근 청소년의 수면 시간과 비만과의 관련성에 관한 단면연구와 종단연구를 많이 찾아볼 수 있는데, 이들 연구의 결과, 수면시간이 짧은 청소년에서 비만의 위험이 높음을 알 수 있다.
Purpose: The purpose of this study was to investigate relationships between short sleep, obesity, and screen time. Methods: Data were obtained from a survey using a sample of 1,166 academic, and 597 vocational high school students. A structured questionnaire was used to assess demographics, hours spent in sleep, TV viewing, internet usage, and game playing. Obesity was determined using the body mass index. Descriptive statistics, Cochran Mantel Haenszel Chi-square test, and multiple logistic regression with dummy variables were performed. Results: Short sleep (<8 hours/day) was significantly related to obesity, not in academic school students, but in vocational school students. Academic high school students who had enough sleep (≥8 hours/day), had more time spent on TV viewing, internet usage, and game playing. Similar results were found in vocational high school students except for internet use. Interestingly, students with better school performance spent significantly less time in TV viewing, internet usage, and game playing, and therefore had a lower risk of obesity in academic school students. Conclusion: There is a significant relationship between short sleep and obesity that was found only in vocational high school students. The relationship between short sleep and screen time was not significant in Korean high school students.
서 론 연구 방법 연구 결과 논 의 결론 및 제언 REFERENCES
