Knee pain and its severity in elderly Koreans: prevalence, risk factors and impact on quality of life.

J Korean Med Sci · 2013 · PMC3857379 · PMID 24339713

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an increasing trendno p-value reported

( 1 ) reported an increasing trend in the prevalence of knee pain in the United States after they evaluated data from the National Health and Nutrition Examination Surveys between 1971 and 2004 and from the Framingham Osteoarthritis Study between 1983 and 2005.

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