Codes and Frequencies
DITTHAY indicates whether the person used a special diet to treat hay fever. Please see the Comparability and Universe tabs for more information on how this variable was constructed.
For a complete list of conditions that persons could report treating using complementary and alternative medicine (CAM) therapies, please see TCONMOST1 or use the IPUMS NHIS search function and drop down menus.
Prior to 2012, in universe persons were asked about a series of specific health problems, symptoms, or conditions they may have treated with different complementary and alternative medicine (CAM) therapies. Beginning in 2012, persons 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 about these top three therapies. Respondents were only asked follow-up questions about the CAM therapies that they included among their top three CAM therapies. Persons who did not include a special diet among their top three CAM therapies are recording as responding "no" to DITTHAY. For more information on the construction of this variable, please see TABDOM1. There are no comparability issues.
- 2002: Sample adults age 18+ who have used at least one of these special diets for two weeks or more for health reasons during the past 12 months and have used at least one of these special diets for a specific health problem or condition.
- 2007: Sample adults age 18+ and sample children under 18 who have used a special diet during the past 12 months and have used a special diet for a specific health problem or condition.
- 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.
- 2002, 2007, 2012