title: Effects of social activity on health-related quality of life according to age and gender: an observational study.
abstract: BACKGROUND
  The aim of this study was to examine the relationship between types and amount of social activity and health-related quality of life according to gender and age group.
  
  
  METHODS
  This study used data from the Community Health Survey (CHS), which was collected in 2011 and consisted of 229,226 participants aged 19 or older. A linear mixed effects model was used to evaluate the factors influencing health-related quality of life among individuals tracked in the CHS and, in particular, to analyze the associations between the amount and types of social activities participated in and the EuroQol EQ-5D assessment.
  
  
  RESULTS
  We found that the average quality of life increased according to the amount of social activities individuals participated in (zero = 89.30, one = 93.28, two = 95.25, three = 96.27, four = 96.85). When people participated in one social activity, social activity was more strongly associated with EQ-5D in the elderly age group (males: 19-34 years = 0.195, 35-49 years = 0.642, 50-64 years = 1.716, ≥ 65 years = 4.408; females: 19-34 years = 0.170, 35-49 years = 0.502, 50-64 years = 1.411, ≥ 65 years = 4.180). More participation was positively associated with higher EQ-5D (one = 1.939, two = 2.377, three = 2.439, four = 2.515, p for trend < 0.0001). In females, those who participated in relationship organizations had a higher EQ-5D than those who participated in other types of social activities (Females ≥ 65 age group; Relationship = 4.373, Leisure = 2.620, Religion = 1.842, Charity = 1.544).
  
  
  CONCLUSIONS
  There was a positive association between the increase in the number of social activities and increase in health-related quality of life, especially when evaluated in terms of type of social activities and health-related quality of life according to gender and age group.
authors.affiliation: Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea.|Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Hye Ki
authors.initials: HK
authors.lastname: Park
authors.affiliation: Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea.|Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Sung Youn
authors.initials: SY
authors.lastname: Chun
authors.affiliation: Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea.|Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Young
authors.initials: Y
authors.lastname: Choi
authors.affiliation: Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea.|Department of Health Policy and Management, Graduate School of Public Health, Yonsei University, Seoul, Republic of Korea.
authors.forename: Seo Yoon
authors.initials: SY
authors.lastname: Lee
authors.affiliation: Department of Public Health, Graduate School, Yonsei University, Seoul, Republic of Korea.|Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea.
authors.forename: Seung Ju
authors.initials: SJ
authors.lastname: Kim
authors.affiliation: Institute of Health Services Research, Yonsei University College of Medicine, Seoul, Republic of Korea. ecpark@yuhs.ac.|Department of Preventive Medicine, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 120-752, Republic of Korea. ecpark@yuhs.ac.
authors.forename: Eun-Cheol
authors.initials: EC
authors.lastname: Park
mesh_terms: D000328:Adult; D017677:Age Distribution; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D015438:Health Behavior; D006304:Health Status; D006306:Health Surveys; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged; D011788:Quality of Life; D056910:Republic of Korea; D012648:Self Care / Q000379:methods; D017678:Sex Distribution; D012923:Social Class; D012944:Social Support