Incidence of symptomatic hand, hip, and knee osteoarthritis among patients in a health maintenance organization

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公開日
1995-08
権利情報
  • http://onlinelibrary.wiley.com/termsAndConditions#vor
DOI
  • 10.1002/art.1780380817
公開者
Wiley

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<jats:title>Abstract</jats:title> <jats:p> <jats:italic>Objective.</jats:italic> To quantify the incidence of symptomatic hand, hip, and knee osteoarthritis (OA) among members of the Fallon Community Health Plan, a health maintenance organization located in central Massachusetts. </jats:p> <jats:p> <jats:italic>Methods.</jats:italic> Incident OA was defined as the first evidence of OA by radiography (grade ≥2 on the Kellgren‐Lawrence scale of 0–4) plus joint symptoms at the time the radiograph was obtained or up to 1 year before the radiograph was obtained. </jats:p> <jats:p> <jats:italic>Results.</jats:italic> The age‐ and sex‐standardized incidence rate for hand OA was 100/100,000 person‐years (95% confidence interval [95% CI] 86, 115), for hip OA 88/100,000 person‐years (95% CI 75, 101), and for knee OA 240/100,000 person‐years (95% CI 218, 262). The incidence of hand, hip, and knee OA increased with age, and women had higher rates than men, especially after age 50. A leveling off or decline occurred for both groups around the age of 80. </jats:p> <jats:p> <jats:italic>Conclusion.</jats:italic> In a large study of symptomatic OA we observed incidence rates that increased with age. In women ages 70‐89, the incidence of knee OA approached 1% per year.and women had higher rates than men, especially after age 50. A leveling off or decline occurred for both groups around the age of 80. </jats:p>

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