Table 3.

Mixed-effects logistic regression analysis of predictors for uterine rupture^a

		n	%b	aOR	SE	95%CI	p value
Geographical characteristics
Country	Senegal	278	48.86	Ref
	Mali	291	51.14	1.33	0.24	0.94–1.89	0.112
Hospital Type	Capital	121	21.27	Ref
	Regional	293	51.49	1.59	0.32	1.08–2.34	0.018
	District	155	27.24	1.22	0.24	0.82–1.80	0.327
Location of residence	In town of hospital	433	76.10	Ref
	Out of town, same region	76	13.36	1.06	0.19	0.75–1.50	0.736
	Outside of region	56	9.84	1.90	0.38	1.28–2.81	0.001
Maternal characteristics
Age	< 20	45	7.91	1.06	0.21	0.71–1.56	0.789
	20–35	408	71.70	Ref
	> 35	106	18.63	1.09	0.13	0.85–1.38	0.498
Parityc	1 birth	55	9.67	Ref
	2 births	72	12.65	2.74	0.56	1.84–4.07	< 0.001
	3 or 4 births	147	25.83	4.89	0.96	3.33–7.19	< 0.001
	> 5 births	294	51.67	7.57	1.45	5.19–11.03	< 0.001
Obstetric factors
No. Prenatal Visits	None	135	23.73	1.80	0.21	1.44–2.25	< 0.001
	1 to 4	381	66.96	Ref
	>  4	44	7.73	0.98	0.17	0.70–1.36	0.891
Prior Cesarean	Yes	121	21.27	2.02	0.23	1.61–2.54	< 0.001
	No	447	78.56	Ref
Obstructed labor + Referral	Not obstructed or referred	43	7.56	Ref
	Not obstructed, Referred	87	15.29	7.61	1.50	5.17–11.19	< 0.001
	Obstructed, Not referred	101	17.75	23.65	4.57	16.20–34.53	< 0.001
	Obstructed + Referred	336	59.05	46.25	8.04	32.90–65.02	< 0.001
> 90th centile birth weight	Yes	140	0.25	1.61	0.17	1.30–1.98	< 0.001
	No	420	0.75	Ref

^aMissing values: Age (n = 10), Parity (n = 1), No. Prenatal Visits (n = 9), Referral (n = 1), Prior cesarean delivery (n = 1), Obstructed labor (n = 1), ≥ 90th centile birth weight [3600 g] (n = 9), Location of residence (n = 4)

^bPercentage of uterine rupture cases

^cAmong cases of uterine rupture all women in the lowest parity category were parity = 1 representing the current pregnancy