Illustrating risk difference and number needed to treat from a randomized controlled trial of spinal manipulation for cervicogenic headache

doi:10.1186/1746-1340-18-9

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Chiropr Osteopat. 2010; 18: 9.

Published online 2010 May 24. doi: 10.1186/1746-1340-18-9

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Improvement from spinal manipulation. The figures show the percentage of spinal manipulation patients that achieved increasing levels of improvement in cervicogenic headache (CGH) pain, number, and disability at the 12-week and 24-week follow-ups. Control group data are not included.