Low birthweight (<2500 grams) differences among mothers (G2) and daughters (G3) born in Sweden by grandmothers’ (G1) region/country of origin
| Mothers (G2) | Daughters (G3) | ||
| Model 1 | Model 1 | Model 2 | |
| OR (95% CI) | OR (95% CI) | OR (95% CI) | |
| Sweden (ref) | 1 | 1 | 1 |
| Non-Western | 0.90 | 1.38** | 1.25 |
| (0.74 to 1.10) | (1.12 to 1.69) | (0.98 to 1.60) | |
| Eastern European | 1.02 | 1.07 | 0.96 |
| (0.85 to 1.10) | (0.86 to 1.32) | (0.74 to 1.25) | |
| Western | 1.06 | 1.08 | 0.98 |
| (0.85 to 1.32) | (0.85 to 1.38) | (0.73 to 1.33) | |
| Rest of Nordic | 1.01 | 0.96 | 0.86** |
| (0.91 to 1.12) | (0.86 to 1.07) | (0.75 to 0.99) | |
| Constant | 1.01 | 0.80*** | 0.00* |
| (0.97 to 1.05) | (0.77 to 0.82) | (0.0 to 0.84) | |
| Observations | 246 642 | 314 415 | 314 415 |
Model 1 includes gestational age (G2 and G3, respectively).
Model 2 adjusted for G3 gestational age, G3 birth year, G3 birth order, G2 birthweight, G2 gestational age, G2 BMI, G2 height, G2 age at birth, G2 smoking during pregnancy, G2 income and G2 education. Model 2 is equivalent to model 4 in linear models.
Standard errors are clustered by mother’s ID for G3 model.
*P<0.05, **p<0.01, ***p<0.001.