NHIS Sources

Variable Year Supplement
EXCHANGE 2021 In both sample adult and child questionnaires
EXCHANGE 2020 In both sample adult and child questionnaires
EXCHANGE 2019 In both sample adult and child questionnaires
EXCHANGE 2018 Person (core questionnaire)
EXCHANGE 2017 Person (core questionnaire)
EXCHANGE 2016 Person (core questionnaire)
EXCHANGE 2015 Person (core questionnaire)
EXCHANGE 2014 Person (core questionnaire)