Codes and Frequencies
YTQUSIMMUN indicates whether the person used yoga, Tai chi, or Qi gong "to improve or enhance immune function." Please see Comparability and Universe tabs for information on changes to this variable. For related variables and more information, please see TABDOM1, or use the search function or IPUMS NHIS drop-down menus.
Prior to 2012, sample adults who had seen a practitioner for yoga, Tai chi, or Qi gong during the past 12 months were asked their reasons for using yoga, Tai chi, or Qi gong.
Beginning in 2012, sample adults and sample children were instead asked to select three of sixteen therapies that were most important and only asked the series of questions related to treating health problems, symptoms, or conditions as well as reasons for and importance of use of these top three therapies. Persons who did not include yoga, Tai chi, or Qi gong among their top three CAM therapies did not answer follow up questions for this therapy beginning in 2012 and are reported as responding "no."
- 2007: Sample adults age 18+ who have practiced yoga, tai chi, or qi gong during the past 12 months.
- 2012: Sample adults age 18+ and sample children ages 4-17 who have reported having at least one top CAM therapy and using this therapy to treat a specific health problem or condition.
- 2007, 2012