EFCAM is a federation of European CAM associations

A recent surevey carried out in the USA showed that 37% of the population use CAM to augment their healthcare. Compared to those who did not use CAM, CAM users were more likely to rate their health as ‘Excellent’  Similarly, CAM users were more likely to report their health as ‘Better’ than in the prior year. The authors conclude that prospective trials are required to determine whether CAM use is causally related to excellent health status and better health than in the prior year.

http://www.ncbi.nlm.nih.gov/pubmed/21053090