Journal article
Prevalence and Distribution of Electronic Cigarette Use Before and During Pregnancy Among Women in 38 States of the United States
Nicotine & tobacco research, Vol.23(9), pp.1459-1467
03/06/2021
DOI: 10.1093/ntr/ntab041
PMCID: PMC8517965
PMID: 33693836
Abstract
Introduction: To examine the prevalence and the changing pattern of e-cigarette use from preconception to pregnancy. Aims and Methods: This is a cross-sectional study using data from the multi-site Pregnancy Risk Assessment Monitoring System in the United States, 2016-2017. All participating mothers with information on e-cigarette use before and during pregnancy were included. Self-reported information about e-cigarette use were assessed using questionnaires. Weighted prevalences of e-cigarette use before and during pregnancy were calculated. Multivariable logistic regressions were used to examine the association between various demographic characteristics and e-cigarette use before or during pregnancy. Results: This study included 69 508 pregnant women from 38 states in the United States. The weighted prevalence of e-cigarette use before pregnancy and during the last 3 months of pregnancy was 3.6% (95% confidence interval [CI] 3.4%-3.9%) and 1.1% (0.9%-1.2%), respectively. The prevalence varied across states, ranging from 1.3% to 8.3% for e-cigarette use before pregnancy and from 0.1% to 3.4% for e-cigarette use during the last 3 months of pregnancy. Among women who used e-cigarettes before pregnancy, 24.4% (21.7%-27.1%) continued to use e-cigarettes during pregnancy. Among women who used e-cigarettes during pregnancy, 62.3% (56.5%-68.0%) were dual users. In multivariable analyses, cigarette smoking was most strongly associated with e-cigarette use. The adjusted odds ratio comparing smokers with nonsmokers before pregnancy was 11.10 (95% CI 9.34-13.20) for e-cigarette use before pregnancy and 6.72 (95% CI 4.38-10.31) for e-cigarette use during pregnancy. Conclusions: Using data from 38 states in the United States, we showed geographical variations in the prevalence of e-cigarette use before and during pregnancy. Among women who used e-cigarettes before pregnancy, a quarter of them continued to use e-cigarettes during pregnancy. Conventional cigarette use is a strong risk factor for e-cigarette use before and during pregnancy. The prevalence of e-cigarette use needs to be monitored continuously. Implications: This study provides important information to understand the status and changing patterns of e-cigarette use in pregnant women in the United States. Among pregnant women in 38 states in the United States, 3.6% of them used e-cigarettes during the 3 months before pregnancy and 1.1% used them during the last 3 months of pregnancy. The prevalence varied across states. A quarter of women who used e-cigarettes before pregnancy continued to use e-cigarettes during pregnancy. Cigarette smoking is the strongest predictor of e-cigarette use. Future research about health effects of e-cigarette use during pregnancy is in urgent need.
Details
- Title: Subtitle
- Prevalence and Distribution of Electronic Cigarette Use Before and During Pregnancy Among Women in 38 States of the United States
- Creators
- Buyun Liu - University of IowaYang Du - University of IowaYuxiao Wu - University of IowaYangbo Sun - University of IowaMark K Santillan - University of IowaDonna A Santillan - University of IowaWei Bao - University of Iowa
- Resource Type
- Journal article
- Publication Details
- Nicotine & tobacco research, Vol.23(9), pp.1459-1467
- Publisher
- Oxford University Press
- DOI
- 10.1093/ntr/ntab041
- PMID
- 33693836
- PMCID
- PMC8517965
- ISSN
- 1462-2203
- eISSN
- 1469-994X
- Grant note
- ; P30 ES005605 / ; R03 HD100708 / ;
- Language
- English
- Date published
- 03/06/2021
- Academic Unit
- Epidemiology; Obstetrics and Gynecology
- Record Identifier
- 9984318222202771
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