Table 4 Sensitivity analyses with monthly household income and neighborhood deprivation categorized into quintiles

Preterm birth

2,83

2,75 – 2,90

< 0,001

Small for gestational age

1,44

1,40 – 1,47

< 0,001

Maternal age

0,99

0,99 – 0,99

0,034

Children’s year of birth: 2012

0,92

0,90 – 0,94

< 0,001

Children’s year of birth: 2013

1,38

1,35 – 1,41

< 0,001

Children’s year of birth: 2014

7,67

7,52 – 7,82

< 0,001

Multiparous

0,96

0,95 – 0,98

< 0,001

Immigrant

0,99

0,98 – 1,01

0,440

Monthly household income Q1

1,22

1,19 – 1,25

< 0,001

Monthly household income Q2

1,22

1,19 – 1,25

< 0,001

Monthly household income Q3

1,15

1,12 – 1,17

< 0,001

Monthly household income Q4

1,09

1,06 – 1,11

< 0,001

Neighborhood deprivation Q2

1,04

1,02 – 1,06

0,001

Neighborhood deprivation Q3

1,07

1,05 – 1,10

< 0,001

Neighborhood deprivation Q4

1,08

1,05 – 1,10

< 0,001

Neighborhood deprivation Q5

1,12

1,10 – 1,15

< 0,001