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Table 5 Change in medication use by individuals between baseline and 36 months

From: How do people with knee osteoarthritis use osteoarthritis pain medications and does this change over time? Data from the Osteoarthritis Initiative

  Proportion of baseline users (n/N)
Therapy type used in month prior to visit Used at both BL and 36 months Used at BL but not 36 months
Acetaminophen 40.6% (41/101) 59.4% (60/101)
Prescription NSAIDs 26.2% (17/65) 73.8% (48/65)
OTC NSAIDs 39.1% (84/215) 60.9% (131/215)
Coxibs 31.6% (25/79) 68.4% (54/79)
Opioids 29.2% (7/24) 70.8% (17/24)
Chondroitin and/or glucosamine 61.8% (214/346) 38.2% (132/346)
  1. BL, baseline; Coxibs, COX-II inhibitors; NSAID, non-steroidal anti-inflammatory drug; OTC, over the counter.