Predictive model for postpartum hemorrhage requiring hysterectomy in a minority ethnic region

Table 2 Binary logistic regression analysis of factors related to hysterectomy

Parameters	β	SE	Wald χ2	P value	OR	OR (95%CI)
Age	0.042	0.023	3.153	0.076	1.043	0.996-1.092
Number of deliveries	0.493	0.123	16.136	0.000	1.637	1.287-2.083
History of cesarean section	0.601	0.260	5.341	0.021	1.824	1.096-3.036
History of adverse obstetric or perinatal events	0.475	0.266	3.189	0.074	1.607	0.955-2.706
Placenta previa	2.237	0.284	61.853	0.000	9.367	5.364-16.359
Uterine atony	2.663	0.345	59.598	0.000	14.343	7.294-28.202
Placenta accreta	1.505	0.292	26.559	0.000	4.504	2.541-7.984
Constant	-10.565	0.872	146.709	0.000	0.000

CI: Confidence interval; OR: Odds ratio; SE: Standard error.