Table 1.

Selected maternal and child characteristics in 159 Peruvian children, by prenatal supplement type

	Maternal supplement type
Characteristic	Iron + folate	Iron + folate + zinc
	86	73
Maternal†
Age, y	23.4±4.9	23.5±4.9
Height, cm	152.4±5.1	152.2±5.5
BMI, kg/m2	23.6±3.4	23.2±3.2
Primiparity, %	57.0	56.2
Maternal education, %
Primary or less	4.9	11.3
Secondary incomplete	28.0	25.3
Secondary complete	50.0	46.5
Beyond secondary	17.1	16.9
Birth
Gestational age at birth, wk	39.3±1.2	39.2±1.4
Weight at birth, g	3277±386	3309±440
Length at birth, cm	49.7±1.9	50.1±2.2

Values are mean ± SD or percent;

^†evaluated at a mean age of 13 weeks gestation.

No statistically significant differences by supplement type (p >0.05); p-values were calculated using t-test or chi-square test.