Table 4.

Probability of severe complications after CRC surgery in relation to the sum score from Table 3.

Score from Table 3	Events/No. Cases	Predicted	Sensitivity a	Specificity a	+LR b	−LR b
0–1	18/217	10%	1	0	1	-
2	28/293	13%	0.89	0.22	1.14	0.49
3	20/139	14%	0.73	0.51	1.48	0.53
4	37/198	17%	0.61	0.64	1.69	0.61
5	11/86	19%	0.40	0.81	2.11	0.74
6	23/80	23%	0.33	0.89	3.12	0.75
7-or higher	34/75	31%	0.20	0.96	4.45	0.84

^a Sensitivity and specificity based on the development cohort. ^b LR, likelihood ratio; +, positive; −, negative.