Table 1.

Demographics and clinical characteristics of the two groups

Variable	old (n = 40 patients)	young (n = 40 patients)
Age (yr)	81.3 (2.3)	68 (3.1)
Gender M/F	20/22	20/22
ASA score	3,1 ± 0.1	2.1 ± 0.6
BMI	25.01 (2.8)	24.11 (2.9)
Hemoglobin (g/liter)	11.7 (2.0)	12.0 (1.6)
Weight loss (>10%)	10	7
Cancer stage (TNM)
I	8	8
II	8	10
III	20	19
IV	4	3
Type of operation
Right hemicolectomy	12	12
Left hemicolectomy	5	4
Sigmoid resection	13	14
Rectal resection	10	10

Data are number of patients or mean.