TABLE 2.

Cross-sectional analysis for physical and neurologic development

	Arteries
	1		2
Physical development	n	Mean ± SD	n	Mean ± SD	P valuea
Height, cm
Birth	260	49.5 ± 2.9	40,811	49.9 ± 2.8	.01
4 mo	218	62.1 ± 3.4	35,875	62.2 ± 3.2	.75
8 mo	65	69.3 ± 2.8	15,402	69.7 ± 3.1	.33
1 y	214	74.4 ± 4.3	34,427	74.4 ± 3.5	.72
3 y	80	93.5 ± 4.5	15,661	94.4 ± 4.1	.05
4 y	145	100.8 ± 5.2	27,744	101.4 ± 4.6	.10
7 y	190	120.7 ± 5.8	31,239	121.7 ± 5.9	.02
Head circumference, cm
Birth	260	33.5 ± 1.8	40,979	33.7 ± 1.6	.01
4 mo	219	40.4 ± 1.6	36,061	40.6 ± 1.5	.03
8 mo	66	43.7 ± 1.7	15,368	44.1 ± 1.6	.04
1 y	215	45.7 ± 1.7	34,796	45.8 ± 1.6	.31
3 y	81	49.3 ± 1.5	15,658	49.4 ± 1.6	.57
4 y	142	49.8 ± 1.7	27,644	50.0 ± 1.6	.25
7y	189	51.2 ± 1.7	31,259	51.3 ± 1.6	.20
Weight, kg
Birth	257	3.1 ± 0.5	40,930	3.2 ± 0.5	< .0001
4 mo	218	6.2 ± 0.9	35,844	6.3 ± 0.9	.01
8 mo	66	8.4 ± 1.5	15,450	8.5 ± 1.1	.22
1 y	213	9.7 ± 1.4	34,610	9.8 ± 1.3	.09
3 y	82	14.1 ± 1.8	15,780	14.3 ± 1.9	.23
4 y	145	16.2 ± 2.1	27,740	16.5 ± 2.3	.22
7 y	189	23.2 ± 3.7	31,313	23.9 ± 4.4	.03

^at test.

Chetty-John. Longitudinal outcomes in isolated single umbilical artery. Am J Obstet Gynecol 2010.