JAMA 2024 (Feb 20); 331 (7): 613-615

Figure 1. Age-Standardized Prevalence of Use of Complementary Health Approaches by US Adults in 2002, 2012, and 2022.

Data are from the 2002 (n = 31 044), 2012 (n = 34 525), and 2022 (n = 27 651) National Health Interview Survey (NHIS). Prevalence was estimated using survey weights supplied by the National Center for Health Statistics. All estimates are age-standardized to the age distribution of the US population in 2010 to allow comparisons across years. Questions about the use of chiropractic care and meditation in the 2012 NHIS were sufficiently different from questions in 2002 and 2022, such that prevalence comparisons could not be made (eTable in Supplement 1). The significance of changes over time was assessed using the Cochran-Mantel-Haenszel test for linear trend. P < .001 for all comparisons. Error bars represent 95% CIs. PMR indicates progressive muscle relaxation.

^aData from 2012 are not available.