title: Age and gender patterns in associations between lifestyle factors and physical performance in older Korean adults.
abstract: OBJECTIVE
  To investigate age and gender patterns in associations between lifestyle factors and physical performance in community-dwelling older Korean adults.
  
  
  METHODS
  A cross-sectional study was conducted in a population-based sample of an urban area. Randomly sampled older Korean adults (n=664; mean age, 74.6 years) participated. Data on current physical activity level and doing exercise, social participation and hobbies, smoking status, drinking status, sleep quality, and physical performance were obtained. Binary logistic regression analyses were used to identify the age and gender patterns in associations between various lifestyle factors and physical performance.
  
  
  RESULTS
  In younger (age <85 years) men, significant predictors of poor physical performance by logistic regression analysis after adjusting for covariates were current physical activity time, doing exercise, and engagement in social activities. In younger women, current physical activity time and sleep quality were related to poor physical performance. In older (age ≥ 85 years) men, family gatherings were a significant factor. In older women, no lifestyle factor assessed showed a significant relationship with poor physical performance.
  
  
  CONCLUSIONS
  Interventions implemented to modify lifestyle factors need to focus on age and gender subgroups in the elderly population. Lifestyle modification should be emphasised as a targeted treatment program for Korean adults aged <85 years.
authors.affiliation: Department of Rehabilitation Medicine, National Medical Center, 245, Eulji-ro, Jung-gu, 100-799 Seoul, Republic of Korea; Department of Biomedical Engineering, Seoul National University College of Medicine, Seoul, Republic of Korea.
authors.forename: Eun Sil
authors.initials: ES
authors.lastname: Koh
authors.affiliation: Red Cross College of Nursing, Chung-Ang University, 221, Heukseok-Dong, Dongjak-Gu, 156-756 Seoul, Republic of Korea.
authors.forename: Soong-Nang
authors.initials: SN
authors.lastname: Jang
authors.affiliation: Department of Rehabilitation Medicine, Seoul National Univerisity College of Medicine, Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, 463-707 Seongnam-si, Gyeonggi-do, Republic of Korea.
authors.forename: Nam-Jong
authors.initials: NJ
authors.lastname: Paik
authors.affiliation: Department of Neuropsychiatry, Seoul National University College of Medicine, Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, 463-707 Seongnam-si, Gyeonggi-do, Republic of Korea; Department of Brain and Cognitive Science, Seoul National Univesity College of Natural Sciences, Bldg. 501 Shilim, Gwanak, 151-746 Seoul, Republic of Korea.
authors.forename: Ki Woong
authors.initials: KW
authors.lastname: Kim
authors.affiliation: Department of Rehabilitation Medicine, Seoul National Univerisity College of Medicine, Seoul National University Bundang Hospital, 300, Gumi-dong, Bundang-gu, 463-707 Seongnam-si, Gyeonggi-do, Republic of Korea. Electronic address: drlim1@snu.ac.kr.
authors.forename: Jae-Young
authors.initials: JY
authors.lastname: Lim
mesh_terms: D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D015897:Comorbidity; D003430:Cross-Sectional Studies; D005260:Female; D015577:Geriatric Assessment / Q000379:methods*; D006801:Humans; D008019:Life Style; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D009043:Motor Activity; D056910:Republic of Korea; D012737:Sex Factors; D011795:Surveys and Questionnaires; D014505:Urban Population
keywords: Gender; Lifestyle; Older adults; Physical performance