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Government Shutdown 2025 Monthly Data Status: September data are now available via IPUMS. October data were not collected. November data collection was extended and release of these data by the Census Bureau will be delayed.
ECFREQ
Categorical frequency of E-cigarette usage in the past 30 days.
Return to E-cigarette Use variables list

Codes and Frequencies



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Description

ECFREQ indicates the categorical amount of E-cigarette usage in the past 30 days for persons interviewed for the Tobacco Use Supplement (TBRESP) that have ever used E-cigarettes.

This variable is part of the Tobacco Supplement.

Comparability

The universe that IPUMS CPS reports for this variable is based on a review of the original CPS technical documentation. Investigating the data may reveal cases that do not meet the stated universe. Users are encouraged to validate universes for their analyses.

Universe

  • Jul 2014, Jan 2015, May 2015, Jul 2018, Jan 2019, May 2019, Sep 2022, Jan 2023, and May 2023: Persons interviewed for the Tobacco Use Supplement (TBRESP) that have ever used E-cigarettes.

Availability

Years Jan Feb ASEC Apr May Jun Jul Aug Sep Oct Nov Dec
2014 - - - - - - X - - - - -
2015 X - - - X - - - - - - -
2018 - - - - - - X - - - - -
2019 X - - - X - - - - - - -
2022 - - - - - - - - X - - -
2023 X - - - X - - - - - - -

Flags

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Unharmonized Variables

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