Skip to main content

Table 2 Trend of the prevalence (%) of smoking during pregnancy, by age, 2010–2017

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

 OverallUnder 1515–1920–2425–2930–3435–3940–4445 and over
20109.232.9412.4514.459.305.664.524.642.90
20118.942.3811.8414.199.095.654.454.412.75
20128.712.9111.1513.819.015.664.384.262.52
20138.472.5510.6413.338.945.674.374.082.06
20148.372.6010.2112.979.005.694.564.112.53
20157.722.369.2711.738.555.404.473.762.13
20167.182.508.5210.718.135.184.423.611.95
20176.891.688.259.887.945.154.393.631.71
Cochran–Armitage p-value<.00010.01<.0001<.0001<.0001<.00010.08<.0001<.0001
  1. Note: Logistic regression results show age was a significant predictor of maternal smoking during pregnancy (p < 0.0001). Additionally, the interaction between age and year was statistically significant (p < 0.0001), indicating that the trend differed by age groups