In Reply We appreciate the interest from Ahuja and Reddy as well as Braillon in our study.1 We concur with Ahuja and Reddy that it is important to determine the patterns of electronic cigarette (e-cigarette) use by age and race/ethnicity. We performed an ad hoc analysis to assess the prevalence by age (age ranges of 18-24 years, 25-34 years, and 35-44 years) and race/ethnicity (Hispanic, non-Hispanic white, non-Hispanic black, and non-Hispanic other). We found that the prevalence of current e-cigarette use among pregnant women aged 18 to 24 years was substantially higher than pregnant women aged 25 to 34 years or 35 to 44 years, which is consistent with findings in general adults in the United States.2 However, there was no significant difference in the prevalence of current e-cigarette use across the age groups examined among nonpregnant women of reproductive age. For race/ethnicity, similar to findings among general adults in the United States,2 the prevalence of e-cigarette use was higher among non-Hispanic white individuals than Hispanic individuals or non-Hispanic black individuals among nonpregnant women of reproductive age. We could not assess the prevalence by race/ethnicity among pregnant women in this study because of a small number of nonwhite pregnant women. Future studies with a large sample size of pregnant women are needed to assess disparities in the prevalence of e-cigarette use among pregnant women according to age and race/ethnicity.
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Liu B, Bao W. Electronic Cigarette Use Among Populations of Women During Reproductive Years—Reply. JAMA Pediatr. 2019;173(12):1214–1215. doi:10.1001/jamapediatrics.2019.4165
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