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Fig. 2 | BMC Pregnancy and Childbirth

Fig. 2

From: Trends in smoking during pregnancy by socioeconomic characteristics in the United States, 2010–2017

Fig. 2

Trend of the prevalence of smoking during pregnancy, by educational attainment, 2010–2017. Cochran–Armitage tests were used to assess the statistical significance of changes in the trend of the prevalence of smoking during pregnancy stratified by educational attainment (p < 0.001 for all education subgroups). Logistic regression results show the odds of smoking during pregnancy and whether the trend differed significantly between educational attainment groups (p < 0.0001)

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