Table 3 Lineal decompositions of the differences in birthweight between HIC mothers and mothers of other origins
NHI-EUR – HIC | AFC – HIC | LAC – HIC | ASC – HIC | |||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Coef. | SD | P > z | [95% | CI] | Coef. | SD | P > z | [95% | CI] | Coef. | SD | P > z | [95% | CI] | Coef. | SD | P > z | [95% | CI] | |
Overall | ||||||||||||||||||||
HIC | 3368.3 | 1.5 | 0.000 | 3365.4 | 3371.1 | 3407.4 | 1.3 | 0.000 | 3404.8 | 3410.1 | 3390.1 | 1.0 | 0.000 | 3388.2 | 3392.0 | 3320.7 | 2.9 | 0.000 | 3315.1 | 3326.3 |
Other origin | 3318.1 | 1.8 | 0.000 | 3314.7 | 3321.6 | 3318.1 | 1.8 | 0.000 | 3314.7 | 3321.6 | 3318.1 | 1.8 | 0.000 | 3314.7 | 3321.6 | 3318.1 | 1.8 | 0.000 | 3314.7 | 3321.6 |
Difference | 50.2 | 2.3 | 0.000 | 45.7 | 54.6 | 89.3 | 2.2 | 0.000 | 84.9 | 93.7 | 72.0 | 2.0 | 0.000 | 68.1 | 76.0 | 2.6 | 3.4 | 0.443 | −4.0 | 9.2 |
Explained | 26.9 | 1.4 | 0.000 | 24.0 | 29.7 | 63.3 | 1.7 | 0.000 | 60.0 | 66.7 | 27.7 | 0.8 | 0.000 | 26.1 | 29.3 | 17.9 | 2.3 | 0.000 | 13.5 | 22.4 |
Unexplained | 23.3 | 1.8 | 0.000 | 19.8 | 26.8 | 26.0 | 1.4 | 0.000 | 23.1 | 28.8 | 44.3 | 1.9 | 0.000 | 40.7 | 47.9 | −15.3 | 2.5 | 0.000 | −20.3 | −10.4 |
Explained | ||||||||||||||||||||
Infant sex | 0.7 | 0.3 | 0.034 | 0.1 | 1.4 | 0.9 | 0.3 | 0.002 | 0.4 | 1.5 | 0.3 | 0.3 | 0.267 | −0.2 | 0.8 | 1.2 | 0.4 | 0.005 | 0.4 | 2.1 |
Birth order | −3.8 | 0.2 | 0.000 | −4.3 | −3.3 | 18.8 | 0.5 | 0.000 | 17.7 | 19.8 | 5.7 | 0.3 | 0.000 | 5.2 | 6.2 | 10.0 | 0.5 | 0.000 | 8.9 | 11.0 |
Labor complications | −0.4 | 0.1 | 0.000 | −0.6 | −0.2 | 0.1 | 0.1 | 0.071 | 0.0 | 0.2 | 0.6 | 0.1 | 0.000 | 0.4 | 0.7 | −0.5 | 0.1 | 0.000 | −0.8 | − 0.2 |
Caesarean delivery | −0.2 | 0.1 | 0.211 | −0.5 | 0.1 | −0.1 | 0.1 | 0.230 | −0.2 | 0.1 | 0.9 | 0.1 | 0.000 | 0.7 | 1.1 | 0.0 | 0.1 | 0.895 | −0.1 | 0.2 |
Age of mother | 5.6 | 0.9 | 0.000 | 3.8 | 7.4 | 5.0 | 0.8 | 0.000 | 3.5 | 6.5 | −0.1 | 0.4 | 0.765 | −1.0 | 0.7 | 1.6 | 1.3 | 0.231 | −1.0 | 4.2 |
Marital status of mother | 0.8 | 0.1 | 0.000 | 0.6 | 1.0 | 6.5 | 0.8 | 0.000 | 5.0 | 8.1 | 0.2 | 0.1 | 0.212 | −0.1 | 0.4 | 0.6 | 0.6 | 0.256 | −0.5 | 1.7 |
Education of mother | −7.6 | 0.9 | 0.000 | −9.4 | −5.8 | −1.0 | 1.8 | 0.560 | −4.5 | 2.5 | 4.3 | 0.7 | 0.000 | 3.0 | 5.5 | −8.7 | 2.0 | 0.000 | −12.7 | −4.7 |
Family class | −2.1 | 1.0 | 0.041 | −4.1 | −0.1 | −1.6 | 1.6 | 0.325 | −4.8 | 1.6 | 3.9 | 0.7 | 0.000 | 2.6 | 5.2 | −9.9 | 1.6 | 0.000 | −13.0 | −6.8 |
Citizenship of mother | 23.2 | 1.3 | 0.000 | 20.7 | 25.6 | 10.1 | 1.0 | 0.000 | 8.1 | 12.1 | 2.3 | 0.1 | 0.000 | 2.0 | 2.6 | 14.7 | 1.3 | 0.000 | 12.2 | 17.2 |
Age of father | −1.1 | 0.5 | 0.022 | −2.0 | −0.2 | 1.9 | 0.3 | 0.000 | 1.4 | 2.4 | −0.4 | 0.3 | 0.081 | −0.9 | 0.1 | 1.3 | 0.8 | 0.095 | −0.2 | 2.9 |
Migratory status of father | 11.7 | 1.1 | 0.000 | 9.6 | 13.8 | 22.8 | 1.7 | 0.000 | 19.5 | 26.1 | 10.2 | 0.5 | 0.000 | 9.1 | 11.2 | 7.5 | 2.1 | 0.000 | 3.4 | 11.6 |