Table I.

Maternal attributes.

Variable	Ancestry	Low altitude	High altitude	p-altitude
Age, years	European	26.9 ± 6.0 (18)	30.9 ± 1.1 (11)	<0.05
	Andean	27.9 ± 5.6 (23)	25.9 ± 0.7 (82)	NS
	p-ancestry	NS	<0.01
Height, cm	European	160.7 ± 1.0 (18)	161.9 ± 1.6 (11)	NS
	Andean	158.1 ± 1.0 (24)	150.5 ± 0.6 (82)	<0.001
	p-ancestry	NS	<0.01
Primiparous, %	European	38.9 [20.3, 61.4]	45.8 [27.9, 64.9]	NS
	Andean	54.5 [28.0, 78.7]	36.6 [27.0, 47.4]	NS
	p-ancestry	NS	NS
Weight, non-preg, kg	European	69.1 ± 2.3 (18)	64.0 ± 2.0 (21)	NS
	Andean	66.6 ± 1.8 (11)	55.5 ± 1.7 (82)	<0.001
	p-ancestry	NS	<0.01
Weight, 36 weeks, kg	European	77.1 ± 2.3 (18)	73.1 ± 1.8 (22)	NS
	Andean	74.3 ± 2.1 (11)	62.7 ± 1.7 (46)	<0.01
	p-ancestry	NS	<0.001
Skinfolds, non-preg mm	European	66.1 ± 3.0 (18)	48.6 ± 5.7 (14)	<0.01
	Andean	64.8 ± 3.2 (11)	23.9 ± 1.1 (82)	<0.001
	p-ancestry	NS	<0.001
MAP, non-preg mmHg	European	77.3 ± 1.0 (18)	78.7 ± 1.7 (21)	NS
	Andean	77.8 ± 2.6 (11)	71.9 ± 1.4 (81)	NS†
	p-ancestry	NS	<0.01
Smoke, % yes	European	6.3 [1.7, 20.2] (18)	7.7 [2.1, 24.1] (23)	NS
	Andean	4.6 [0.8, 21.8] (11)	2.3 [0.6, 8.1] (82)	NS
	p-ancestry	NS	<0.001
Prenatal vitamins, % yes	European	78.1 [61.3, 89.0] (18)	88.9 [71.9, 96.2] (23)	NS
	Andean	86.3 [66.7, 95.2] (11)	47.7 [37.5, 58.1] (68)	<0.05
	p-ancestry	NS	<0.05
Income, $/mo.	European	379 ± 56 (15)	1250 ± 386 (13)	<0.001
	Andean	282 ± 53 (8)	84 ± 6 (82)	<0.001
	p-ancestry	NS	<0.001

Values are reported as means ± SEM or as percentages with 95% CI in brackets []. One-way ANOVA was used for comparisons between continuous variables; chi-squared tests were used for comparisons between categorical variables.

MAP, mean arterial pressure; pntl, prenatal; p-ancestry = significance values between ancestry groups within altitude groups; p-altitude: significance values between altitude groups, within ancestry groups

^†= 0.05< p < 0.10.

Sample sizes are in parentheses ().