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Table 2 Characteristics of the newborns delivered at 40–41 weeks of gestational age in Lima (150 m) and Cerro de Pasco (4340 m)

From: Arterial oxygen saturation in healthy newborns delivered at term in Cerro de Pasco (4340 m) and Lima (150 m)

  Lima (n = 131) Cerro de Pasco (n = 37)
  mean ± SEM mean ± SEM
Birthweight (g) 3329.31 ± 34.84 2925.41 ± 43.63*
Height (cm) 50.54 ± 0.15 48.99 ± 0.22*
Head circumference (cm) 34.30 ± 0.11 34.31 ± 0.20
Thoracic circumference (cm) 33.55 ± 0.16 32.77 ± 0.22**
Apgar At first minute 7.95 ± 0.06 7.03 ± 0.35**
Apgar at five minutes 8.96 ± 0.03 8.68 ± 0.14
SpO2 at first minute (%) 60.60 ± 1.20 42.32 ± 2.54*
Neurological score at 24 h 27.44 ± 0.30 22.00 ± 0.67*
  1. *P < 0.01, **P < 0.05 with respect to values in Lima (150 m)