title: Relation Between Health-Related Quality of Life and Sleep Quality With Adjustment for Comorbidity Among the Korean Elderly: Mixed-Effects Model With a 6-Year Follow-up Study.
abstract: It is an important public health problem to identify risk factors of health-related quality of life (HRQoL) among the elderly. We recruited subjects from Ansan, Korea, as a subset of the Korean Genome and Epidemiology Study (KoGES), which is an ongoing population study, and followed up their sleep quality for 6 years. Mixed effect models were used to estimate the association between sleep quality and HRQoL, and we found that overall HRQoL was significantly lower to the elderly having poor sleep quality with adjustment for significant covariates although sleep quality showed a significant interaction effect with time for the mental component summary of SF-12. In particular, the elderly having lack of quality sleep appeared to have good general health, but their functional performances were significantly poor.
authors.affiliation: Department of Applied Statistics, College of Science and Technology, Korea University, Sejong, Korea Institute of Human Genomic Study, Korea University, Ansan, Korea.
authors.forename: Amy M
authors.initials: AM
authors.lastname: Kwon
authors.affiliation: Department of Applied Statistics, College of Science and Technology, Korea University, Sejong, Korea Division of Respiratory and Critical Care, Department of Internal Medicine, Korea University Ansan Medical Center, Korea University, Republic of Korea chol-shin@korea.ac.kr.
authors.forename: Chol
authors.initials: C
authors.lastname: Shin
mesh_terms: D015897:Comorbidity; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D011788:Quality of Life; D056910:Republic of Korea / Q000453:epidemiology; D012307:Risk Factors; D012890:Sleep; D012893:Sleep Wake Disorders / Q000453:epidemiology*
keywords: Health-related quality of life (HRQoL); SF-12; comorbidity; elderly; sleep quality