Table 2.

Meta-analyses by procedure sub-group

Procedure		Bladder				Ureteric
	Studies identified	Studies reporting bladder injury rate	Patients (n)	Weighted pooled mean injury rates; events per 100,000 procedures	95% CI; events per 100,000 procedures	Studies reporting ureteric injury rate	Patients (n)	Weighted pooled mean injury rates; events per 100,000 procedures	95% CI; events per 100,000 procedures
Caesarean section	15	15	144,558	267	190–343	11	62,187	9	0–18
Hysterectomy
Open abdominal (benign)	15	15	550,784	641	445–837	15	550,784	255	6–446
Open abdominal (any histology)	9	7	604,058	473	46–900	9	707,492	261	33–489
Open abdominal (malignant)	4	4	1,711	614	0–1,302	4	1,711	577	0–1,191
Open abdominal (peripartum)	4	3	5,379	6,279	1,731–10,826	4	6,907	666	178–1,153
Vaginal (benign)	15	15	144,856	878	635–1,120	15	144,856	39	23–55
Vaginal (any histology)	6	4	6,109	295	156–435	6	52,492	122	5–239
Laparoscopic (benign)	15	14	48,814	997	401–1,594	15	50,114	262	126–399
Laparoscopic (any histology)	13	11	10,002	375	173–577	13	27,022	417	127–707
Laparoscopic–(malignant)	8	8	1,541	1,553	610–2,496	8	1,541	814	222–1,406
Laparoscopic–assisted vaginal (benign)	14	14	12,077	445	190–699	14	12,077	87	26–147
Laparoscopic assisted vaginal (any histology)	9	8	13,530	506	248–764	9	40,688	186	0–415
Robot-assisted (any histology)	3	3	1,394	212	0–486	3	1,394	398	0–939

CI confidence interval,