Table 2 OLS regression model on birthweight
Coef. | Std. Err. | P-value | [95% Conf. | Interval] | ||
|---|---|---|---|---|---|---|
Infant sex | Male | 0 | ||||
Female | − 124.129 | 1.243 | 0.000 | − 126.565 | −121.694 | |
Birth order | 1st | 0 | ||||
2nd - 3th | 96.369 | 1.360 | 0.000 | 93.704 | 99.035 | |
4th+ | 139.752 | 3.191 | 0.000 | 133.497 | 146.007 | |
Labor complications | No | 0 | ||||
Yes | 31.561 | 2.141 | 0.000 | 27.366 | 35.757 | |
Caesarean delivery | No | 0 | ||||
Yes | 24.331 | 1.817 | 0.000 | 20.770 | 27.892 | |
Age of mother | < 20 | 0 | ||||
20–30 | 53.784 | 3.665 | 0.000 | 46.601 | 60.967 | |
31+ | 44.870 | 3.925 | 0.000 | 37.177 | 52.562 | |
Marital status of mother | Married | 0 | ||||
Never married | −5.547 | 1.454 | 0.000 | −8.397 | −2.698 | |
Separated/Divorced | −8.937 | 3.167 | 0.005 | −15.144 | −2.730 | |
Widow | −36.169 | 14.020 | 0.010 | −63.647 | −8.691 | |
Education of mother | Primary or less | 0 | ||||
Lower Secondary | 16.919 | 1.811 | 0.000 | 13.369 | 20.468 | |
Upper Secondary | 18.038 | 1.940 | 0.000 | 14.236 | 21.840 | |
University | 10.156 | 2.409 | 0.000 | 5.436 | 14.877 | |
Family class | Manager/Professional | 0 | ||||
White Collar | −3.126 | 3.021 | 0.301 | −9.047 | 2.796 | |
Service Workers | 5.753 | 2.976 | 0.053 | −0.080 | 11.586 | |
Skilled Workers | 9.467 | 3.339 | 0.005 | 2.922 | 16.012 | |
Unskilled Workers | 6.414 | 3.175 | 0.043 | 0.192 | 12.637 | |
Inactive | −5.983 | 2.832 | 0.035 | −11.533 | −0.432 | |
Citizenship of mother | Other | 0 | ||||
Spanish | −31.294 | 1.725 | 0.000 | −34.676 | −27.913 | |
Age of father | 0.442 | 0.104 | 0.000 | 0.239 | 0.645 | |
Migratory status of father | Native | 0 | ||||
Migrant | 22.839 | 1.558 | 0.000 | 19.786 | 25.893 | |
Origin of Mother | HIC | 0 | ||||
NHI-EUR | 33.208 | 2.500 | 0.000 | 28.307 | 38.108 | |
AFC | 52.219 | 2.672 | 0.000 | 46.983 | 57.456 | |
LAC | 57.147 | 2.143 | 0.000 | 52.947 | 61.347 | |
ASC | −31.365 | 3.606 | 0.000 | −38.433 | −24.298 | |
Constant | 3254.735 | 5.751 | 0.000 | 3243.463 | 3266.007 | |