To the Editor Liu et al1 showed (1) electronic cigarette (e-cigarette) use is higher for pregnant women (3.6%) than for women who are not pregnant (3.3%); (2) 39% of pregnant women smoking conventional cigarettes were also current e-cigarette users. Liu et al1 must be commended for this most robust study about an overlooked issue, despite smoking being the most preventable cause of preterm birth and all other complications during pregnancies except hypertensive pregnancy. In contrast, the finger of blame must be pointed on the system.
Braillon A. Electronic Cigarette Use Among Populations of Women During Reproductive Years. JAMA Pediatr. 2019;173(12):1213–1214. doi:10.1001/jamapediatrics.2019.4162
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