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Table 4 The proportions of participants using specific types of analgesics or nutraceuticals at baseline according to demographic and clinical characteristics

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

Variable   n A'phen Px NSAID OTC NSAID COXIB Opoids Gluco/chond Other nutra
Sex Male 435 8.3% 6.9% 25.7% 6.4% 1.4% 42.3% 9.0%
  Female 552 17.6% 9.2% 27.7% 13.2% 4.9% 39.5% 8.3%
Race White 701 11.6% 8.0% 24.7% 11.7% 2.7% 47.4% 10.1%
  Non-white 286 18.2% 8.7% 32.2% 6.6% 4.9% 24.5% 4.9%
Age <65 594 12.3% 10.1% 27.3% 9.3% 3.4% 40.1% 8.9%
  65 to 74 312 14.1% 6.1% 26.3% 11.9% 3.2% 43.9% 8.3%
  >74 81 19.8% 2.5% 25.9% 11.1% 3.7% 33.3% 7.4%
KL grade 2 378 12.4% 9.8% 22.2% 9.3% 3.7% 35.4% 7.1%
  3 442 13.6% 7.5% 30.5% 9.5% 3.6% 39.8% 7.9%
  4 167 15.6% 6.6% 27.5% 14.4% 1.8% 55.1% 13.8%
Pain NRS 0 to 3 233 6.9% 6.9% 19.7% 9.4% 0.4% 47.2% 7.7%
  4 to 7 535 14.8% 6.9% 26.5% 9.7% 3.0% 41.7% 8.4%
  8 to 10 219 17.4% 12.8% 35.2% 12.3% 7.3% 31.5% 10.0%
Co-morb Absent 696 10.1% 7.6% 27.2% 10.6% 2.7% 44.8% 9.9%
  Present 291 21.6% 9.6% 26.1% 9.3% 4.8% 30.9% 5.5%
BMI <26 129 11.6% 9.3% 24.0% 8.5% 2.3% 48.8% 10.0%
  26 to 30 381 9.7% 5.0% 24.9% 10.0% 1.6% 44.9% 9.7%
  >30 477 17.0% 10.5% 29.1% 10.9% 5.0% 35.2% 7.3%
  1. A'phen, acetaminophen; BMI, body mass index kg/m2; chond, chondroitin; Gluco, glucosamine; KL, Kellgren-Lawrence; NRS, numerical rating scale; NSAID, non-steroidal anti-inflammatory drug; nutra, nutraceutical; OTC, over the counter; Px, prescription.