. Author manuscript; available in PMC: 2011 Aug 17.

Published in final edited form as: Am J Obstet Gynecol. 2009 Apr 18;201(1):105.e1–105.e4. doi: 10.1016/j.ajog.2009.03.020

Table 1.

History of patients undergoing placement of cervicoisthmic cerclage

Variable	Abdonminal (n=37)	Vaginal (n=33)	P value
Age (y)	31.9±5.0	31.0±5.6	NS
Body mass index	26.8±5.6	32.6 ±8.2	0.001
Non-white	13 (35)	23 (70)	0.012
History of DES	6 (16)	1 (3)	NS
History of LLEP/conization	14 (38)	6 (18)	NS
History of cerclage	28 (76)	29 (88)	NS