National Trends

Tracking the use of complementary and alternative medicines by age and condition.


Alternative medicines by age and condition

About 38% of U.S. adults use (see Figure) some form of complementary and alternative medicine (CAM), according to the 2007 National Health Interview Survey (NHIS), an annual study that interviewed more than 23,300 American adults through the National Center for Complementary and Alternative Medicine (NCCAM).