Table 8.

Logistic Regression Analysis Adjusted for MOMS Center

Model	Adjusted OR	95% CI	p-value
Chorioamniotic Membrane Separation
Time on MgSO4 tocolysis (hrs)	0.92	0.71 – 1.20	0.55
PPROM
Total duration of surgery (min)	1.03	0.995 – 1.07	0.09
Membrane separation	1.78	0.57 – 5.58	0.32
SROM
Nulliparous	0.35	0.13 – 0.99	0.05
Gestational age at surgery (wks)	0.67	0.45 – 0.99	0.04
Total duration of surgery (min)	1.03	0.99 – 1.06	0.16
Membrane separation	2.96	1.05 – 8.35	0.04
PTD ≤ 34.0 weeks
Maternal age (yrs)	0.97	0.88 – 1.07	0.54
Total duration of surgery (min)	1.03	0.99 – 1.07	0.11
Oligohydramnios	9.21	2.19 – 38.78	0.003
Membrane separation	1.82	0.55 – 6.06	0.33
Non-intact hysterotomy
Nulliparous	3.68	1.35 – 10.05	0.01
SROM	0.60	0.22 – 1.69	0.34
Time on MgSO4 tocolysis (hrs)	0.95	0.75 – 1.22	0.70