Table I.

Comparison of maternal characteristics between groups.

	ACS treatment group (n=354)	Control group (n= 5900)	p-value
Maternal age, years	29.0 ± 3.0	28.8 ± 3.1	0.664&
Nulliparity, n (%)	121 (34.1%)	2141 (36.3%)	0.521*
BMI, kg/m2	27.12 ± 2.08	27.24 ± 2.08	0.727&
Previous cesarean history, n (%)	63 (17.7%)	1121 (19%)	0.601*

^*Pearson chi-square tests.

^&Parametric comparisons were made using the t-test, and nonparametric comparisons were made using the Mann–Whitney U test. Values are expressed as mean ± standard deviation or n (%). BMI, body mass index.