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*Asked of respondents who said they have used an e-cigarette at least once in their entire life.
PLEASE NOTE: Due to changes in the weighting methodology and other factors, results from 2017
are NOT comparable to 2010 and earlier years.
Sub-group estimates have been suppressed because they do not meet statistical reliability standards.
^Use caution in interpreting cell sizes less than 50, % = Percentage, C.I.(95%) = Confidence Interval (at 95 percent probability level).
Percentages are weighted to population characteristics and therefore cannot be calculated exactly from the numbers in this table.
This page was generated on 10SEP18.