Table 2. Factors associated with fetal demise or abortion.

Reduction of multiple gestations, decreased time between MMC defect creation and repair, and earlier gestational age at MMC repair were associated with increased fetal loss. Cesarean delivery was associated with decreased fetal loss.

Defect Creation:	Median (IQR)	Odds Ratio (95% CI)	p value
Gestational age	77 days (77–79)	1.06 (0.92–1.22)	0.43
Fetus operative time	34 min (28–41)	1.01 (0.99–1.03)	0.29
Ewe operative time	124 min (98–144)	1.00 (0.99–1.02)	0.19
Volume of added saline	700 ml (500–850) N (%)	1.00 (0.99–1.00)	0.42
Reduction of multiple gestation	41 (14.8)	3.03 (1.29–7.05)	0.01*
Defect Repair:	Median (IQR)	Odds Ratio (95% CI)	p value
Days since defect creation	26 days (22–28)	0.82 (0.73–0.91)	<0.001*
Gestational age	101 days (99–105)	0.90 (0.83–0.90)	0.03*
Fetus operative time	50 min (39–64)	1.07 (0.96–1.20)	0.25
Ewe operative time	164 min (128–201)	1.01 (0.99–1.01)	0.18
Volume of added saline	1000 ml (750–1260)	1.00 (0.99–1.00)	0.13
Delivery:	Median (IQR)	Odds Ratio (95% CI)	p value
Ambient high temperature	75°F (66–86)	1.00 (0.97–1.02)	0.70
Gestational age	146 days (140–147) N (%)	0.94 (0.87–1.03)	0.18
Cesarean delivery	60 (43.8)	0.37 (0.16–0.31)	0.02*

^*p<0.05