| Dependent variable: SGA | Estimated coefficient (β) | Odds ratio (95% CI) | p Value |
| Independent variable | |||
| Low altitude | |||
| PE or GH (yes) | 0.81 | 2.26 (1.03 to 4.93) | <0.05 |
| Ancestry | – | – | NS |
| Andean (reference) | – | – | NS |
| Mestizo | – | – | NS |
| European | – | – | NS |
| Parity (no. births) | – | – | NS |
| Maternal weight at term (kg) | – | – | NS |
| Prenatal care (no. visits) | – | – | NS |
| High altitude | |||
| PE or GH (yes) | 0.38 | 1.46 (1.05 to 2.05) | <0.05 |
| Ancestry | – | – | <0.001 |
| Andean (reference) | – | – | – |
| Mestizo | 0.30 | 1.35 (0.89 to 2.05) | NS |
| European | 1.60 | 4.94 (2.35 to 10.38) | <0.001 |
| Parity (no. births) | –0.20 | 0.82 (0.73 to 0.92) | <0.01 |
| Maternal weight at term (kg) | –0.05 | 0.95 (0.93 to 0.97) | <0.001 |
| Prenatal care (no. visits) | – | – | NS |
PE, pre-eclampsia; GH, gestational hypertension.