Codes and Frequencies
For sample adults who had taken any mixed or single herbal or botanical supplement (2000, 2012) or had used natural herbs for their own health (2002) during the past 12 months (HERYR) and sample children in 2012, HERYMEL indicates whether the person had taken melatonin during the past 12 months.
Melatonin was one of many alternative health treatment modalities included in the 2002 and 2012 Complementary and Alternative Health Supplements. If sample respondents gave a positive response to HERYMEL, they were asked a series of follow-up questions.
Additional information about use of melatonin was collected for respondents who reported using melatonin in the past 12 months, including variables on frequency of use. Please use the IPUMS NHIS drop-down menus and search function to learn more about these variables.
- 2000: Sample adults age 18+ who took herbal supplements in past 12 months.
- 2002: Sample adults age 18+ who have used natural herbs for their health during the past 12 months.
- 2012: Sample adults age 18+ and children ages 4-17 who have taken herbs or other non-vitamin supplements in the past 12 months.
- 2000, 2002, 2012