Table 2.

Risk factors for severe postpartum hemorrhage: univariate and multivariate analysis

variables	OR(95%CI)	aOR(95%CI)*
Height	0.93(0.86-1.00)	0.98(0.94–1.01)
Weight	0.95(0.90–0.99)	0.93(0.87–0.99)
Gravidity	1.30(1.05–1.60)	0.50(0.21–1.22)
Parity	2.78(1.34–5.73)	2.49(0.70–8.85)
Gestational weeks	0.21(0.10–0.45)	0.42(0.16–1.12)
Times of abortions	1.35(1.02–1.78)	2.37(0.88–6.40)
Times of previous cesarean sections	3.23(1.85–5.62)	2.58(0.83–8.05)
Hemoglobin	0.99(0.96–1.02)	1.01(0.97–1.05)
Platelet count	1.00(0.99-1.00)	1.00(0.99-1.00)
Increta placenta	1.75(0.58–5.24)	2.73(0.67–11.22)
Increta or percreta placenta	8.88(3.88–20.35)	7.93(2.53–24.77)
Anterior placenta	3.68(1.77–7.63)	1.63(0.59–4.50)
Placenta previa	2.38(0.99–5.75)	1.39(0.45–4.29)

aOR, adjusted odds ratio; OR, odds ratio

* Multivariate logistic regression model with multiple imputation including variables listed in the column