Table 2 Binomial logistic regression: stepwise model building on the association between healthcare costs and perinatal outcomes, background characteristics, monthly household income and neighborhood deprivation
| Â | Model 1 | Model 2 | Model 3 | Model 4 | ||||
|---|---|---|---|---|---|---|---|---|
OR | 95% CI | OR | 95% CI | OR | 95% CI | OR | 95% CI | |
Preterm birth | 2,55 | 2,48 – 2,61 | 2,85 | 2,77 – 2,93 | 2,84 | 2,76 – 2,91 | 2,83 | 2,76 – 2,91 |
Small for gestational age | 1,41 | 1,38 – 1,45 | 1,46 | 1,43 – 1,50 | 1,45 | 1,42 – 1,49 | 1,44 | 1,41 – 1,48 |
Maternal age |  |  | 0,99 | 0,99–0,99 | 0,99 | 0,99 – 0,99 | 0,99 | 0,99 – 0,99 |
Children’s year of birth: 2012 |  |  | 0,92 | 0,90 – 0,94 | 0,92 | 0,90 – 0,94 | 0,92 | 0,90 – 0,94 |
Children’s year of birth: 2013 |  |  | 1,38 | 1,36 – 1,41 | 1,38 | 1,36 – 1,41 | 1,38 | 1,35 – 1,41 |
Children’s year of birth: 2014 |  |  | 7,70 | 7,55 – 7,85 | 7,69 | 7,54 – 7,84 | 7,65 | 7,50 – 7,81 |
Multiparous |  |  | 0,99 | 0,98 – 1,02 | 0,98 | 0,96 – 0,99 | 0,98 | 0,96 – 0,99 |
Immigrant status |  |  | 1,06 | 1,04 – 1,07 | 1,03 | 1,02 – 1,05 | 1,00 | 0,98 – 1,02 |
Monthly household income |  |  |  |  | 0,99 | 0,99 – 0,99 | 0,99 | 0,99 – 0,99 |
Neighborhood deprivation |  |  |  |  |  |  | 1,02 | 1,01 – 1,02 |