Table 2.

Risk stratification table for women not experiencing later non-elective operative delivery.

Model 1 risk intervals		Model 2 risk intervals
		0.00– 0.10	0.10– 0.20	0.20– 0.30	0.30– 0.40	0.40– 0.50	0.50– 0.60	0.60– 0.70	0.70– 0.80	0.80– 0.90	Total
		j = 1	j = 2	j = 3	j =4	j =5	j = 6	j =7	j =8	j = 9
0.00– 0.10	i = 1	1295	110	0	0	0	0	0	0	0	1405
0.10– 0.20	i = 2	59	204	38	3	0	0	0	0	0	304
0.20– 0.30	i = 3	0	222	276	163	20	0	0	0	0	681
0.30– 0.40	i = 4	0	41	262	387	203	32	2	0	0	927
0.40– 0.50	i = 5	0	1	88	145	180	130	23	0	0	567
0.50– 0.60	i = 6	0	0	2	21	46	49	27	6	0	151
0.60– 0.70	i = 7	0	0	0	2	3	14	14	6	0	39
0.70– 0.80	i = 8	0	0	0	0	0	0	2	0	0	2
0.80– 0.90	i = 9	0	0	0	0	0	0	0	1	0	1
Total		1354	578	666	721	452	225	68	13	0	4077