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Arthritis – Osteoarthritis

Osteoarthritis (OA) is the most common form of arthritis and a common cause of disability among older people. Almost 27 million American adults have it. Age is one of the biggest risk factors. Women have higher rates of OA, especially after age 50.

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Content last updated: August 12, 2010.

Resources last updated: August 12, 2010.

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