Effect of previous placenta previa on outcome of next pregnancy: a 10-year retrospective cohort study

Table 4 Pregnancy outcomes of women in the vaginal delivery group

Variable	Without PP history (n = 4438)	With PPhistory (n = 29)	OR	95% CI	aOR	95% CI
Cesarean delivery	383 (8.6%)	9 (31%)	4.76	2.15–10.54	2.27	0.88–5.82
PPH	319 (7.2%)	3 (10.3%)	1.49	0.45–4.95	1.27	0.37–4.35
PAS	83 (1.9%)	4 (13.8%)	8.4	2.8–264.66	5.71	1.81–18.03
Transfusion	47 (1.1%)	2 (6.9%)	6.92	1.6–29.94	3.3	0.66–16.6
ICU	2 (0)	0
Hysterectomy	0	0
Maternal mortality	0	0
PP	61 (1.4%)	3 (10.3%)	8.28	2.44–28.09	4.14	1.07–16.04
Puerperal infection	32 (0.7%)	0

OR odds ratio; aOR adjusted odds ratio; CI confidence interval; ICU intensive care unit; PP placenta previa; PPH postpartum hemorrhage; PAS placenta accreta spectrum disorders

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