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

Table 1 Characteristics of the mothers at sea level and at high altitude (4340 m).

	Lima (n = 131)	Cerro de Pasco (n = 37)
	mean ± SEM	mean ± SEM
Age (years)	25.15 ± 0.58	25.46 ± 0.89
Body Weight (Kg)	54.98 ± 0.69	53.31 ± 1.13
Height (m)	1.55 ± 0.01	1.53 ± 0.01
Age at menarche (years)	13.16 ± 0.16	14.22 ± 0.25*
Hemoglobin at second trimester gr%	10.53 ± 0.27 (32)	13.42 ± 0.64 (6)*
Hemoglobin at third trimester gr%	10.87 ± 0.14 (80)	13.36 ± 0.42 (14)*
Gestational age (Usher) weeks	40.17 ± 0.03	39.51 ± 0.16*

Number of subjects is between parentheses. *P < 0.01 with respect to values in Lima (150 m)

ISSN: 1477-7827