Table 3. Risk Score for Postoperative Mortality for Elderly Patients Undergoing Surgery for Colorectal Cancer.

		Conversion Table
Risk Factor and Subcategory	Score	Total Score	Predicted Mortality (%)
Age group		0	5.9
80-84.9	0	3	7.B
85-89.9	1	6	10.3
90-94.9	6	9	13.4
≥95	11	12	17.2
ASA grade		15	21.9
l-ll	0	18	27.5
III	10	21	33.9
IV-V	18	24	40.9
Metastases		27	48.3
No	0	30	55.7
Yes	6	33	63
Urgency		36	69.7
Elective	0	39	75.6
Emergency	7	42	80.7
Tumor resection		45	85
Yes	0
No	1
Large-bowel obslrutition
No	0
Yes	1
Total score

ASA = American Society of Anesthesiology.

A conversion chart is displayed for estimating the predicted mortality based on the total score.