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. Author manuscript; available in PMC: 2016 Apr 15.
Published in final edited form as: Cochrane Database Syst Rev. 2015 Mar 23;3:CD011118. doi: 10.1002/14651858.CD011118.pub2
Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Pain intensity 3 131 Std. Mean Difference (IV, Random, 95% CI) −0.61 [−0.96, −0.25]
2 Disability 2 94 Std. Mean Difference (IV, Random, 95% CI) −0.50 [−1.02, 0.02]