Table 3 Relationship between maternal characteristics and small for gestational age (SGA) deliveries at low (416 m) and high (3600–4100 m) altitude
Dependent variable: SGAEstimated coefficient (β)Odds ratio (95% CI)p Value
Independent variable
Low altitude
    PE or GH (yes)0.812.26 (1.03 to 4.93)<0.05
        Andean (reference)NS
    Parity (no. births)NS
    Maternal weight at term (kg)NS
    Prenatal care (no. visits)NS
High altitude
    PE or GH (yes)0.381.46 (1.05 to 2.05)<0.05
        Andean (reference)
        Mestizo0.301.35 (0.89 to 2.05)NS
        European1.604.94 (2.35 to 10.38)<0.001
    Parity (no. births)–0.200.82 (0.73 to 0.92)<0.01
    Maternal weight at term (kg)–0.050.95 (0.93 to 0.97)<0.001
    Prenatal care (no. visits)NS
  • PE, pre-eclampsia; GH, gestational hypertension.