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National Health and Nutrition Examination Survey


Adult and Youth Public-Use Data Files Usage Notes


ADULTX & YOUTHX (Response to vitamin, mineral & prescription questions)

These files contain the responses to the vitamin/mineral supplement and prescription medicine questions from the Household Adult and Youth questionnaires, respectively. In addition, "Adultx" also contains the antacid and non-prescription pain relief medicine questions from the Household Adult questionnaire. Responses for each of these four questions are listed as one record per respondent. These files do not contain the dietary supplement or prescription medicine product codes. One must use the respondent identification number (SEQN) to link the records in this file with most other files. This file cannot be directly linked to the dietary supplements concentration database files. These files contain overview discussions about the prescription medicine, antacid, and non-prescription medicines sections of the questionnaire as well as specific notes on selected variables.




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