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January 2026 monthly data are now available via IPUMS CPS. Note that October 2025 data were not collected during the U.S. federal government shutdown.
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

This variable has no flags.

Unharmonized Variables

No variables available