Table 2 Distribution of smoking intensity status in early and late pregnancy according to maternal characteristics, United States, 2016
SMOKING STATUS % (95% CI) | |||||||
|---|---|---|---|---|---|---|---|
|  | TOTAL (N = 275,101) | QUITTER-LOW (n = 35,161) | QUITTER-HIGH (n = 19,577) | MAINTAINER-LOW (n = 79,059) | MAINTAINER-HIGH (n = 101,540) | REDUCER (n = 37,926) | INCREASER (n = 1838) |
| Â | Smoking in Early or Late pregnancy | Low intensity smoking in Early pregnancy only | High intensity smoking in Early pregnancy only | Low intensity smoking in Early and Low intensity smoking in Late pregnancy | High intensity smoking in Early and High intensity smoking in Late pregnancy | High intensity smoking in Early and Low intensity smoking in Late pregnancy | Low intensity smoking in Early and High intensity smoking in Late pregnancy |
Overall % (95% CI) | 7.1 (7.0, 7.1) | 12.8 (12.5, 13.1) | 7.1 (6.7, 7.5) | 28.7 (28.4, 29.0) | 36.9 (36.6, 37.2) | 13.8 (13.5, 14.1) | 0.7 (0.3, 1.1) |
Maternal Characteristics | |||||||
Race/ethnicity | |||||||
 Non-Hispanic White | 76.3 (76.2, 76.5) | 10.7 (10.6, 10.9) | 7.2 (7.1, 7.3) | 25.2 (25.0, 25.4) | 41.4 (41.2, 41.7) | 14.8 (14.6, 14.9) | 0.7 (0.6, 0.7) |
 Non-Hispanic Black | 11.9 (11.8, 12.0) | 18.6 (18.2, 19.0) | 5.8 (5.5, 6.0) | 45.1 (44.5, 45.6) | 20.9 (20.4, 21.3) | 9.1 (8.8, 9.4) | 0.6 (0.5, 0.7) |
 Hispanic | 5.8 (5.7, 5.9) | 23.3 (22.7, 24.0) | 8.4 (8.0, 8.8) | 36.4 (35.7, 37.2) | 20.6 (20.0, 21.3) | 10.6 (10.2, 11.1) | 0.6 (0.5, 0.7) |
 Other race/ethnicity a | 6.0 (5.9, 6.1) | 17.3 (16.8, 17.9) | 7.2 (6.8, 7.6) | 34.5 (33.7, 35.2) | 26.8 (26.1, 27.5) | 13.5 (13.0, 14.0) | 0.7 (0.6, 0.9) |
Age (years) | |||||||
  < 20 | 6.3 (6.2, 6.4) | 18.5 (18.0, 19.1) | 8.7 (8.3, 9.1) | 31.2 (30.5, 31.9) | 26.7 (26.0, 27.4) | 14.1 (13.6, 14.6) | 0.8 (0.7, 0.9) |
 20–24 | 30.4 (30.2, 30.6) | 14.5 (14.2, 14.7) | 7.5 (7.3, 7.7) | 29.6 (29.3, 29.9) | 33.0 (32.7, 33.4) | 14.7 (14.5, 15.0) | 0.6 (0.6. 0.7) |
 25–29 | 33.0 (32.8, 33.2) | 11.9 (11.7, 12.1) | 6.6 (6.5, 6.8) | 28.3 (28.0, 28.6) | 38.7 (38.4, 40.0) | 13.9 (13.6, 14.1) | 0.6 (0.6, 0.7) |
 30–34 | 20.3 (20.2, 20.5) | 10.9 (10.6, 11.2) | 6.8 (6.6, 7.0) | 28.0 (27.6, 28.4) | 40.6 (40.2, 41.0) | 13.0 (12.7, 13.3) | 0.7 (0.6, 0.8) |
 35+ | 10.0 (9.9, 10.1) | 10.7 (10.4, 11.1) | 7.2 (6.9, 7.5) | 27.4 (26.9, 28.0) | 41.8 (41.2, 42.3) | 12.2 (11.8, 12.6) | 0.8 (0.7, 0.9) |
Education | |||||||
 Less than HS | 24.6 (24.5, 24.8) | 9.4 (9.2, 9.6) | 5.3 (5.1, 5.5) | 30.0 (29.6, 30.3) | 41.4 (40.1, 41.7) | 13.3 (13.0, 13.5) | 0.70 (0.7, 0.8) |
 High School/GED b | 41.6 (41.4, 41.8) | 12.0 (11.8, 12.2) | 6.8 (6.7, 7.0) | 28.6 (28.3, 28.9) | 38.0 (37.7, 38.3) | 14.0 (13.8, 14.2) | 0.7 (0.6, 0.7) |
 Some college | 30.4 (30.2, 30.5) | 15.4 (15.2, 15.7) | 8.6 (8.4, 8.8) | 27.9 (27.6, 28.2) | 33.1 (32.8, 33.4) | 14.4 (14.2, 14.7) | 0.6 (0.6, 0.7) |
 Bachelor’s + | 3.5 (3.4, 3.5) | 23.5 (22.7, 24.4) | 11.2 (10.5, 11.8) | 29.3 (28.4, 30.2) | 25.3 (24.5, 26.2) | 10.0 (9.4, 10.6) | 0.7 (0.5, 0.9) |