title: Risk factors for osteoarthritis and contributing factors to current arthritic pain in South Korean older adults.
abstract: OBJECTIVE
  Although previous studies have focused on risk factors for osteoarthritis, there is some debate on this issue. Furthermore, associated factors with arthritic symptom (arthralgia) have not been sufficiently investigated, despite its clinical importance in the management of osteoarthritis. This study was performed to examine the risk factors for osteoarthritis and the contributing factors to current arthritic pain in older adults.
  
  
  METHODS
  The Fourth Korean National Health and Nutrition Examination Surveys was conducted in 2009. Therein, 720 males and 1008 females aged 65 years and older were included. Comprehensive data on habitual, socioeconomic, medical, nutritional, and psychological factors were collected along with the presence of osteoarthritis and arthritic pain. After univariate analysis, binary logistic regression analysis was performed to identify risk factors for osteoarthritis and contributing factors to current arthritic pain.
  
  
  RESULTS
  Age (p=0.005), female gender (p<0.001), higher body mass index (BMI) (p<0.001), and osteoporosis (p<0.001) were significant risk factors for osteoarthritis, while higher education level (p=0.025) was a protective factor for osteoarthritis. Higher BMI (p=0.047), lack of weekly moderate intensity activity (p<0.001), and unfavorable subjective health status (p<0.001) were significant factors contributing to current arthritic pain among subjects with osteoarthritis. Both osteoarthritis and current arthritic pain adversely affected health related quality of life.
  
  
  CONCLUSIONS
  Higher BMI, lack of weekly moderate intensity activity, and unfavorable subjective health status were significant factors contributing to current arthritic pain. More attention needs to be paid to psychiatric effects on osteoarthritis and joint related pain.
authors.affiliation: Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
authors.forename: Kyoung Min
authors.initials: KM
authors.lastname: Lee
authors.affiliation: Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea. chungcy55@gmail.com.
authors.forename: Chin Youb
authors.initials: CY
authors.lastname: Chung
authors.affiliation: Department of Orthopaedic Surgery, Myongji Hospital, Goyang, Korea.
authors.forename: Ki Hyuk
authors.initials: KH
authors.lastname: Sung
authors.affiliation: Department of Orthopaedic Surgery, Ewha Womans University Hospital, Seoul, Korea.
authors.forename: Seung Yeol
authors.initials: SY
authors.lastname: Lee
authors.affiliation: Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
authors.forename: Sung Hun
authors.initials: SH
authors.lastname: Won
authors.affiliation: Department of Orthopaedic Surgery, Gwang Hye Hospital, Busan, Korea.
authors.forename: Tae Gyun
authors.initials: TG
authors.lastname: Kim
authors.affiliation: Department of Orthopaedic Surgery, Konyang University Hospital, Daejeon, Korea.
authors.forename: Young
authors.initials: Y
authors.lastname: Choi
authors.affiliation: Biomedical Research Institute, Seoul National University Bundang Hospital, Seongnam, Korea.
authors.forename: Soon Sun
authors.initials: SS
authors.lastname: Kwon
authors.affiliation: Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
authors.forename: Yeon Ho
authors.initials: YH
authors.lastname: Kim
authors.affiliation: Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seongnam, Korea.
authors.forename: Moon Seok
authors.initials: MS
authors.lastname: Park
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003710:Demography; D005260:Female; D006304:Health Status; D006801:Humans; D007596:Joints / Q000473:pathology; D016015:Logistic Models; D008297:Male; D010003:Osteoarthritis / Q000209:etiology*; D010146:Pain / Q000209:etiology*; D011788:Quality of Life; D056910:Republic of Korea; D012307:Risk Factors
keywords: Osteoarthritis; joint related pain; older adults; risk factors