NHIS Sources

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