title: Impact of persistent hip or knee pain on overall health status in elderly people: a longitudinal population study.
abstract: OBJECTIVE
  To investigate hip or knee symptoms in older persons from a longitudinal, population perspective, and to determine the impact of persistent hip or knee pain on general health status over time.
  
  
  METHODS
  A postal questionnaire was sent to a random sample of 5,500 individuals ages > or = 65 years containing the Short Form 36 (SF-36) general health survey, Lequesne hip and knee indices, and a hip/knee pain severity item. Respondents reporting hip or knee symptoms at baseline received an identical questionnaire 12 months later. Respondents were classified into a persistent pain group with either hip or knee pain at both baseline and followup, and a non-persistent pain group who reported hip or knee pain at baseline but no pain at followup.
  
  
  RESULTS
  At baseline, 1,305 (40.7%) of 3,210 eligible respondents reported hip or knee pain. At 1 year, 1,072 (82.1%) of 1,305 individuals responded, of whom 820 (76.5%) remained symptomatic (the persistent group). In multivariate analysis, baseline factors identified as strongly related to having persistent pain were maximum Lequesne score (odds ratio [OR] 1.09, P < 0.001), maximum hip/knee pain score (OR 1.61, P < 0.001), and number of painful hip and knee joints at baseline (OR 1.48, P = 0.004). Following adjustment for age, sex, and baseline score, differences in mean SF-36 change scores of the 2 groups were significant for all dimensions except for mental health.
  
  
  CONCLUSIONS
  In older persons, a symptomatic hip or knee frequently progresses in terms of worsening symptoms and accrual of other symptomatic hip or knee joints. The impact of persistent symptoms on general health is substantial.
authors.affiliation: School of Health and Social Care, Oxford Brookes University, Oxford, United Kingdom.
authors.forename: Jill
authors.initials: J
authors.lastname: Dawson
authors.forename: Louise
authors.initials: L
authors.lastname: Linsell
authors.forename: Krina
authors.initials: K
authors.lastname: Zondervan
authors.forename: Peter
authors.initials: P
authors.lastname: Rose
authors.forename: Andrew
authors.initials: A
authors.lastname: Carr
authors.forename: Tony
authors.initials: T
authors.lastname: Randall
authors.forename: Ray
authors.initials: R
authors.lastname: Fitzpatrick
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006304:Health Status; D006615:Hip; D006801:Humans; D007717:Knee; D008137:Longitudinal Studies; D008297:Male; D015999:Multivariate Analysis; D015207:Osteoarthritis, Hip; D020370:Osteoarthritis, Knee; D010146:Pain; D011446:Prospective Studies; D011795:Surveys and Questionnaires