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Table 2 Pharmacological and supplemental use among osteoarthritis knee and hip patients

From: Medication and supplement use for managing joint symptoms among patients with knee and hip osteoarthritis: a cross-sectional study

Type, source and pattern of use Frequency Percentage
Overall number of reported interventions*   
Zero 5 3.1
One 92 56.8
Two 55 34.0
Three or More 10 6.2
Class of intervention‡   
NSAID 106 65.4
Other analgesics 55 34.0
Acetaminophen 38 23.5
Nutritional supplement 11 06.8
Level of intervention‡   
Rx user only 80 49.4
OTC user only 46 28.4
Rx and OTC user 31 19.1
Source of recommendation‡   
PCP only 41 25.3
Self-guided only 39 24.1
Orthopedic only 28 17.3
PCP and self-guided 16 09.9
Multiple professional sources 12 07.4
Orthopaedic and self-guided 11 06.8
Other sources 10 06.2
Recall medication dose‡   
All 76 46.9
None 53 32.7
Some 28 17.3
Medications used as directed‡   
Always 110 67.9
Never 34 21.0
Sometimes 13 08.0
2 week consistent medication use‡   
Always 88 54.3
Never 48 29.6
Sometimes 21 13.0
  1. * Interventions = prescription or over-the-counter medication as well as supplements.
  2. ‡ N = 157/162 participants whom reported using a pharmacological intervention, 5 participants reported using none.
  3. NSAID = non-steroidal anti-inflammatory drug, Rx = prescription, OTC = over-the-counter, and PCP = primary care physician.