Correlates of self-reported sleep duration in middle-aged and elderly Koreans: from the Health Examinees Study.
Though various factors related to fluctuations in sleep duration have been identified, information remains limited regarding the correlates of short and long sleep duration among the Korean population. Thus, we investigated characteristics that could be associated with short and/or long sleep duration among middle-aged and elderly Koreans. A total of 84,094 subjects (27,717 men and 56,377 women) who participated in the Health Examinees Study were analyzed by using multinomial logistic regression models. To evaluate whether sociodemographic factors, lifestyle factors, psychological conditions, anthropometry results, and health conditions were associated with short and/or long sleep duration, odds ratios (ORs) and 95% confidence intervals (CIs) were estimated with sleep duration of 6-7 hours as the reference group, accounting for putative covariates. Regardless of sexual differences, we found that adverse behaviors and lifestyle factors including low educational attainment, unemployment, being unmarried, current smoking status, lack of exercise, having irregular meals, poor psychosocial well-being, frequent stress events, and poor self-rated health were significantly associated with abnormal sleep duration. Similarly, diabetes mellitus and depression showed positive associations with abnormal sleep duration in both men and women. Our findings suggest that low sociodemographic characteristics, adverse lifestyle factors, poor psychological conditions, and certain disease morbidities could be associated with abnormal sleep duration in middle-aged and elderly Koreans.
Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea; Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul, Korea.
Hyung-Suk
HS
Yoon
Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea; Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul, Korea.
Jae Jeong
JJ
Yang
Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea; Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul, Korea.
Minkyo
M
Song
Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea.
Hwi-Won
HW
Lee
Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea; Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul, Korea.
Sohee
S
Han
Department of Preventive Medicine, Kangwon National University, Kangwon-do, Korea.
Sang-Ah
SA
Lee
Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea; Cancer Research Institute, Seoul National University, Seoul, Korea.
Ji-Yeob
JY
Choi
JW Lee Center for Global Medicine, Seoul National University College of Medicine, Seoul, Korea; Department of Family Medicine, Seoul National University College of Medicine, Seoul, Korea.
Jong-koo
JK
Lee
Department of Biomedical Sciences, Seoul National University Graduate School, Seoul, Korea; Department of Preventive Medicine, Seoul National University College of Medicine, Seoul, Korea; Institute of Environmental Medicine, Seoul National University Medical Research Center, Seoul, Korea; Cancer Research Institute, Seoul National University, Seoul, Korea.
Daehee
D
Kang
D000368:Aged; D044466:Asian People; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D016017:Odds Ratio; D015995:Prevalence; D056910:Republic of Korea; D057566:Self Report; D012890:Sleep / Q000502:physiology*