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Table 8 Characteristics of included trials of static magnets for pain relief in patients with knee osteoarthritis

From: Short-term efficacy of physical interventions in osteoarthritic knee pain. A systematic review and meta-analysis of randomised placebo-controlled trials

First author, publication year Type No. of patients on active therapy (n = 86) Method quality Treatment period (weeks) Mean baseline pain (mm VAS) Best mean difference (95% CI) of change over placebo (mm VAS) Outcome assessment timepoints (weeks, best time point used in bold)
Hinman-02 Static magnets on knee" 22 4 2 38.8 8.6 (1.4 to 15.4) 2
Harlow-04 Static magnets on wrist (bracelet) 64 5 12 66.8 1.7 (-5.2 to 8.6) 4, 12
Best within 4 weeks   86     5.1 (0.2 to 10.0)  
12 weeks   64     6.5 (-0.6 to 13.6)  
Total   86 3.8*   54.7†   4
  1. *Mean † Weighted mean