Table 2.

Preoperative risks n (%)

Risks	≥70 years (n=60)	< 70 years (n=1 782)	P value
Weight loss	17 (28.3)	564 (31.6)	0.67
Anemia	13 (21.7)	344 (19.3)	0.62
Hypertension	26 (43.3)	512 (28.7)	0.02
Pulmonary dysfunction	43 (71.7)	479 (26.9)	0
Cardiac disease	23 (38.3)	324 (18.2)	0
Cirrhosis	8 (13.3)	155 (8.7)	0.24
Chronic renal disease	11 (18.3)	236 (13.2)	0.25
Diabetes mellitus	24 (40.0)	395 (22.2)	0.003