title: Population survey comparing older adults with hip versus knee pain in primary care.
abstract: BACKGROUND
  Knee pain is nearly twice as prevalent as hip pain in elderly people, yet knee replacement is far less common than hip replacement.
  
  
  OBJECTIVE
  To investigate whether systematic differences in the primary care management of hip versus knee problems might explain the disparate rates of joint replacement.
  
  
  METHODS
  Cross-sectional, population-based postal survey.
  
  
  METHODS
  Random sample of 5500 Oxfordshire residents aged 65 years and above.
  
  
  METHODS
  Screening questions were used to identify symptomatic individuals: "During the past 12 months, have you had pain in or around either of your hips/knees on most days for 1 month or longer?". Standard (Lequesne) severity ratings were obtained for each hip and knee. Logistic regression was used to estimate odds ratios (ORs) for "knee cases" versus "hip cases" for selected healthcare services and attitudes toward replacement.
  
  
  RESULTS
  Among 3341 responders, 212 hip cases and 612 knee cases were identified. Knee pain led to a GP consultation more often than hip pain (OR = 1.76, P = 0.04), but specialist referral was no more likely (OR = 0.85, P = 0.57). Similar percentages of hip and knee cases would agree to hip/knee replacement surgery if it was offered, but hip and knee cases differed in their views on the general success of joint replacement.
  
  
  CONCLUSIONS
  Some variations in primary care management for hip versus knee pain were apparent. People with hip pain were mostly positive about replacement outcomes, whereas people with knee pain were more uncertain about replacement. Attitudes appeared to be influenced by knowing someone who had undergone such surgery.
authors.affiliation: Division of Public Health and Primary Health Care, Oxford University, Old Road, Oxford OX3 7LF, UK. louise.linsell@public-health.oxford.ac.uk
authors.forename: Louise
authors.initials: L
authors.lastname: Linsell
authors.forename: Jill
authors.initials: J
authors.lastname: Dawson
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; D019644:Arthroplasty, Replacement, Hip / Q000706:statistics & numerical data*; D019645:Arthroplasty, Replacement, Knee / Q000706:statistics & numerical data*; D001294:Attitude to Health; D003430:Cross-Sectional Studies; D005194:Family Practice; D005260:Female; D006801:Humans; D008297:Male; D015207:Osteoarthritis, Hip / Q000150:complications* / Q000453:epidemiology / Q000601:surgery; D020370:Osteoarthritis, Knee / Q000150:complications* / Q000453:epidemiology / Q000601:surgery; D010146:Pain / Q000453:epidemiology / Q000209:etiology* / Q000601:surgery; D010147:Pain Measurement; D015995:Prevalence; D011795:Surveys and Questionnaires