Effect of placenta location detected by ultrasound on the severity of placenta accreta spectrum in patients with placenta previa and placenta accreta spectrum

Table 3 Factors influencing the severity of placenta implantation in patients with placenta previa and PAS

	OR	95% confidence interval of Exp (β)		P value
	OR	Lower limit	Upper limit	P value
In employment	0.62	0.40	0.96	0.033
Urban	0.54	0.35	0.84	0.0064
Gestational age	0.98	0.97	1.00	0.0176
Complete placenta previa	4.74	2.41	9.32	< 0.0001
Fetal presentation shoulder	0.40	0.19	0.84	0.0155
Gravidity 2- 3	5.78	1.99	16.77	0.0012
Gravidity > 3	6.25	2.15	18.20	0.0008
Cesarean section	5.65	3.24	2.46	< 0.0001
Vaginal delivery	0.37	0.21	0.64	0.0005
Uerine surgery 1	1.46	0.87	2.46	0.1517
Uerine surgery ≥ 2	1.21	0.73	2.01	0.4481

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