Prevalence of Maternal Smoking before and during Pregnancy

Notes: Data are from 46 states and District of Columbia in 2014.
Smoking before pregnancy is defined as smoking in the 3 months before pregnancy.

Data Source: CDC/NCHS, National Vital Statistics System.

Source: Centers for Disease Control and Prevention/National Center for Health Statistics: Smoking Prevalence and Cessation Before and During Pregnancy: Data From the Birth Certificate, 2014