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This study investigated the prevalence and correlates of electronic cigarettes (e-cigarettes) use in Taiwan.

We studied a nationally representative random sample in the 2015 Taiwan Adult Smoking Behavior Survey.

This study included 26 021 participants aged 15 years or older (51% women, 79% non-smokers, 16% aged 15–24 years), after excluding 31 persons (0.1%) who had missing information on e-cigarette use.

The prevalence of ever having used e-cigarettes was calculated in the overall sample and by smoking status (current, former and never) or age (15–24, 25–44 and ≥45 years). We performed multivariable log-binomial regression to assess correlates of ever having used e-cigarettes among all participants and separately for subgroups by smoking status and age.

Approximately 3% of all participants had ever used e …