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ECFREQ30
Frequency of E-cigarette usage in the past 30 days.
Return to E-cigarette Use variables list

Codes

This variable is 2-digit numeric variable.

0 = None
96 = Refused
97 = Don't know
98 = No response
99 = Not in universe

Top code = 30

Description

ECFREQ30 indicates the how many times the respondent used an E-cigarette in the past 30 days for persons interviewed for the Tobacco Use Supplement (TBRESP) who have used E-cigarettes 'some days' in the past 30 days (ECFREQ).

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, and Sep 2022: Persons interviewed for the Tobacco Use Supplement (TBRESP) who have used E-cigarettes 'some days' in the past 30 days (ECFREQ).

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 - - -

Flags

This variable has no flags.

Unharmonized Variables

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