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Statistics From the National Health Interview Survey

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 complementary health approaches section of NHIS, developed by NCHS and NCCIH, was administered in 2002, 2007, 2012 and 2017.

2017 NHIS

The 2017 survey is the fourth conducted by NCCIH and NCHS—previous surveys occurred as part of the 2012, 2007, and 2002 NHIS. Previous surveys were broader and included substantially more questions while the 2017 survey focused on the use complementary practices not included in other large national surveys, such as meditation, yoga, and chiropractic.

Read the full 2017 reports:

The 2017 questionnaires: