These include:

• Acupuncture (ACUNO)

• Ayurveda (AYUNO)

• Biofeedback (BIONO)

• Chelation (CHENO)

• Special diets (DITPRACNO)

• Energy healing therapy (EHTNO)

• Folk medicine (FOKNO)

• Homeopathic treatment (HOMPRACNO)

• Hypnosis (HYPNO)

• Massage (MASNO)

• Movement techniques (MOVNO)

• Naturopathy (NATNO)

• Relaxation techniques (RELCLASSNO)

• Yoga, Tai chi, or Qi gong (YTQCLASSNO)

• Herbal medicines (HERPRACNO)

For more information on the full range of variables related to chiropractic or osteopathic manipulation, including definitions, see COMYR.

In 2002, sample adults were asked, "During the past 12 months, how many times did you see a practitioner for chiropractic care?"

In 2007, sample adults were asked, "During the past 12 months, how many times did you see a practitioner for chiropractic or osteopathic manipulation?"

Because of the change from "chiropractic care" to "chiropractic or osteopathic manipulation," researchers should exercise caution when conducting analyses that include "COM" variables from both 2002 and 2007.

There are 4 substantive response categories in 2002, and 6 such categories in 2007. To maximize comparability across years without sacrificing detail, IPUMS NHIS uses composite coding for this variable, with the first digit indicating broad ranges of numbers of visits (1 = "Only one time"; 2 = "2 to 10 times"; 3 = "More than 10 times"). The second digit supplies detail present in only some years, such as distinguishing among "More than 10 times" (IHIS code 30), "11 to 15 times" (IHIS code 31), "16 to 20 times" (IHIS code 32), and "More than 20 times" (IHIS code 33). Researchers who wish to maximize comparability between 2002 and 2007 can combine categories beginning with the number 3 into a single "More than 10 times" category.