. Author manuscript; available in PMC: 2011 Oct 1.

Published in final edited form as: Am J Perinatol. 2011 Jun 9;28(9):735–740. doi: 10.1055/s-0031-1280853

TABLE 1.

Maternal demographic characteristics of the two study groups

	Resolved previa N=324	Unresolved previa N=42	p value
Age (year)	31.83 (±5.75)	32.98 (±5.30)	0.22
Race Caucasian Non-caucasian	166 (51) 158 (49)	24 (57) 18 (43)	0.51
Multigravity	290 (90)	34 (81)	0.12
Multiparity	310 (96)	38 (90)	0.14
Prior cesarean	215 (84)	28 (80)	0.63

Data presented at number (percentage) with standard deviation where available; Fisher’s exact test used for analysis of categorical variables, Student T-test and Wilcoxon rank sum used for analysis of group means