Table 1.

Study Sample Characteristics by BMI Group.^a

	Normal-Weight Women, BMI <25 kg/m2		Overweight/Obese Women, BMI ≥25 kg/m2
	N = 143		N = 143
	N	%	N	%
Raceb
White	120	83.9	113	79.0
Black	4	2.8	14	9.8
Asian	12	8.4	6	4.2
Other	7	4.9	10	7.0
Maternal age
≤30	53	37.1	58	40.6
>30	90	62.9	85	59.4
Prenatal smokingc
Yes	13	9.4	11	7.8
No	126	90.7	130	92.2
Education leveld
≤College	67	46.9	94	65.7
>College	76	53.2	49	34.3
Incomeb
≤$ 80 000	57	39.9	79	55.2
>$ 80 000	81	56.6	59	41.3
Unknown or chose not to report	5	3.5	5	3.5
Marital status
Married	127	88.8	118	82.5
Unmarried	16	11.2	25	17.5
Parity
Primipara	59	41.3	42	29.4
Multipara	84	58.7	101	70.6

^a Percentages have been rounded and may not total 100.

^b P < .05.

^c Smoking status was unknown for 6 women.

^d P < .01.