Variable | Year | Supplement |
---|---|---|
ACU | 2022 | In both sample adult and child questionnaires |
ACU_USEM | 2012 | Alternative health |
ACU_USEM | 2007 | Alternative health |
ACU_USEM | 2002 | Alternative health |
AHCACU | 1999 | Sample adult questionnaire |
CAC_USEM | 2012 | Child complementary and alternative medicine |
CAC_USEM | 2007 | Child complementary and alternative medicine |