Statistics on Complementary and Alternative Medicine Use
National Health Interview Survey (CDC and NCCAM)
The National Health Interview Survey (NHIS) is an annual study, conducted by the Centers for Disease Control and Prevention's (CDC) National Center for Health Statistics (NCHS), in which tens of thousands of Americans are interviewed about their health- and illness-related experiences.
- The 2002 and 2007 NHIS included questions on complementary and alternative medicine (CAM).
- View publications using the NHIS data.
National Health and Nutrition Examination Survey (CDC)
National Health and Nutrition Examination Survey (NHANES), conducted by NCHS, is a program of studies designed to assess the health and nutritional status of adults and children in the United States through interviews and physical examinations. NHANES includes data on dietary supplement use.
- April 2011 Data Brief: Dietary Supplement Use Among U.S. Adults Has Increased Since NHANES III (1988–1994) (CDC)
National Home and Hospice Care Survey (CDC)
The National Home and Hospice Care Survey (NHHCS), conducted by NCHS, is a survey of U.S. home health and hospice agencies. It is designed to provide descriptive information on home health and hospice agencies, their staffs, their services, and their patients. The survey includes questions on CAM use.
CAM and People Aged 50+ (AARP and NCCAM)
AARP and NCCAM partnered on a telephone survey of over 1,000 people aged 50 and older to assess whether patients and their health care providers discuss CAM use.
- Complementary and Alternative Medicine: What People Aged 50 and Older Discuss With Their Health Care Providers