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. Author manuscript; available in PMC: 2014 Sep 11.
Published in final edited form as: Cochrane Database Syst Rev. 2010 Oct 6;(10):CD008039. doi: 10.1002/14651858.CD008039.pub2

Comparison 4. Ibuprofen 600 mg versus placebo.

Outcome or subgroup title No. of studies No. of participants Statistical method Effect size
1 Pain-free at 2 hours 1 340 Risk Ratio (M-H, Fixed, 95% CI) 2.19 [1.37, 3.51]
2 Headache relief at 2 hours 1 340 Risk Ratio (M-H, Fixed, 95% CI) 1.43 [1.19, 1.73]