From: Trends in smoking during pregnancy by socioeconomic characteristics in the United States, 2010–2017
Overall | Under 15 | 15–19 | 20–24 | 25–29 | 30–34 | 35–39 | 40–44 | 45 and over | |
---|---|---|---|---|---|---|---|---|---|
2010 | 9.23 | 2.94 | 12.45 | 14.45 | 9.30 | 5.66 | 4.52 | 4.64 | 2.90 |
2011 | 8.94 | 2.38 | 11.84 | 14.19 | 9.09 | 5.65 | 4.45 | 4.41 | 2.75 |
2012 | 8.71 | 2.91 | 11.15 | 13.81 | 9.01 | 5.66 | 4.38 | 4.26 | 2.52 |
2013 | 8.47 | 2.55 | 10.64 | 13.33 | 8.94 | 5.67 | 4.37 | 4.08 | 2.06 |
2014 | 8.37 | 2.60 | 10.21 | 12.97 | 9.00 | 5.69 | 4.56 | 4.11 | 2.53 |
2015 | 7.72 | 2.36 | 9.27 | 11.73 | 8.55 | 5.40 | 4.47 | 3.76 | 2.13 |
2016 | 7.18 | 2.50 | 8.52 | 10.71 | 8.13 | 5.18 | 4.42 | 3.61 | 1.95 |
2017 | 6.89 | 1.68 | 8.25 | 9.88 | 7.94 | 5.15 | 4.39 | 3.63 | 1.71 |
Cochran–Armitage p-value | <.0001 | 0.01 | <.0001 | <.0001 | <.0001 | <.0001 | 0.08 | <.0001 | <.0001 |