Table 1.

Proportion of patients attaining meaningful pain relief for each intervention compared with control: Ordered by descending efficacy (based on risk ratio).

TREATMENT TYPERCTSINTERVENTION EVENT RATE, % (N/N)CONTROL EVENT RATE, % (N/N)NNTTIME FRAMECERTAINTY OF THE EVIDENCE (GRADE)*RISK RATIO (95% CI)
Exercise1147 (341/723)21 (138/644)46 to 104 wk 0000
Low
2.36 (1.79–3.12)
Intra-articular corticosteroids750 (203/410)31 (91/296)64 to 24 wk 0000
Very low
1.74 (1.15–2.62)
SNRIs (duloxetine only)664 (655/1030)43 (443/1030)510 to 18 wk 0000
Moderate
1.53 (1.25–1.87)
NSAIDs (oral)4357 (12 201/21 495)39 (2838/7204)64 to 104 wk 0000
Moderate
1.44 (1.36–1.52)
Glucosamine947 (384/824)37 (306/819)114 to 156 wk 0000
Very low
1.33 (1.02–1.74)
NSAIDs (topical)2261 (2357/3892)47 (1602/3373)81 to 12 wk 0000
Low
1.27 (1.16–1.38)
Chondroitin957 (707/1250)45 (553/1227)912 to 48 wk 0000
Moderate
1.26 (1.13–1.41)
Viscosupplementation3153 (1748/3291)44 (1300/2963)112 to 160 wk 0000
Very low
1.22 (1.12–1.33)
Opioids (oral)1547 (1795/3854)43 (1048/2412)3210 d to 24 wk 0000
Very low
1.16 (1.02–1.32)
Acetaminophen247 (240/513)43 (204/478)NSS6 to 24 wk 0000
Low
1.17 (0.83–1.64)
  • GRADE—Grading of Recommendations Assessment, Development and Evaluation; NNT—number needed to treat; NSAID—nonsteroidal anti-inflammatory drug; NSS—not statistically significant; RCT—randomized controlled trial; SNRI—serotonin-norepinephrine reuptake inhibitor.

  • * Details of GRADE Assessment are available in the appendix from CFPlus (Table A8).