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Data are for the U.S.


  • Number of noninstitutionalized adults with diagnosed arthritis: 51.8 million
  • Percent of noninstitutionalized adults with diagnosed arthritis: 22.1%

Source: Summary Health Statistics for U.S. Adults: National Health Interview Survey, 2012, tables 7, 8 [PDF - 1.3 MB]

Ambulatory care visits

  • Number of visits (to physician offices, hospital outpatient and emergency departments) with a primary diagnosis of osteoarthritis and allied disorders: 11.3 million (average annual, 2009-2010)

Source: Annual number and percent distribution of ambulatory care visits by setting type according to diagnosis group. United States, 2009-2010 [PDF - 127 KB]

Hospital inpatient care

  • Number of discharges with osteoarthritis and allied disorders as first-listed diagnosis: 1.1 Million
  • Average length of stay: 3.4 days

Source: National Hospital Discharge Survey: 2010 table, Average length of stay and days of care – Number and rate of discharges by first-listed diagnostic categories [PDF - 58 KB]

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