Table 7.
Association of any preterm birth with maternal cardiovascular disease in women with index birth from 2001 and women ≥ 35 years of age at the commencement of follow up
| Model 1 | Model 2 | Model 3 | |||||||
|---|---|---|---|---|---|---|---|---|---|
| HR | 95 % CI | HR | 95 % CI | HR | 95 % CI | ||||
| Index birth from 2001 | |||||||||
| Any preterm birth | 2.13 | 1.82 | 2.49 | 1.80 | 1.53 | 2.12 | 1.66 | 1.41 | 1.96 |
| Smoking before last pregnancy | 1.97 | 1.57 | 2.47 | 1.46 | 1.16 | 1.85 | |||
| Smoking during last pregnancy | 2.62 | 2.31 | 2.97 | 2.19 | 1.91 | 2.51 | |||
| Women ≥ 35 years of age only | |||||||||
| Any preterm birth | 1.94 | 1.74 | 2.10 | 1.70 | 1.52 | 1.90 | 1.59 | 1.43 | 1.77 |
| Smoking before last pregnancy | 1.91 | 1.61 | 2.68 | 1.53 | 1.29 | 1.83 | |||
| Smoking during last pregnancy | 2.25 | 2.09 | 3.03 | 2.07 | 1.91 | 2.23 | |||
Multivariate 1: Preterm birth adjusted for maternal age at delivery, country of birth, socioeconomic status, number of births, SGA, pregestational and gestational diabetes
Multivariate 2: Variables in Multivariate 1 + maternal smoking during pregnancy