Quit during pregnancy (n = 7513) | Maintained after delivery (among quitters) (n = 2829) | |||
---|---|---|---|---|
%* | Odds ratio (95% CI)* | %† | Odds Ratio (95% CI)† | |
*Adjusted for maternal age, marital status, race, previous preterm birth. | ||||
†Adjusted for marital status, previous preterm birth. | ||||
Coverage | ||||
Extensive | 51 | 1.58 (1.00 to 2.49) | 48 | 1.63 (1.04 to 2.56) |
Some | 43 | 1.18 (1.03 to 1.34) | 37 | 1.02 (0.89 to 1.18) |
None | 39 | 1.00 | 37 | 1.00 |