Comparison between surgical outcomes of colorectal cancer in younger and elderly patients

Table 2 Data related to surgical treatment of patients with colorectal adenocarcinoma between the two groups (mean ± SD) n (%)

	Younger group (n = 68)	Elderly group (n = 54)	P value
Tumor size index (cm2)	15.7 ± 12.0	22.8 ± 20.2	NS
Lesion circulation (%)	74.0 ± 26.9	75.3 ± 27.7	NS
Operation time (min)	137.4 ± 45.7	120.4 ± 35.1	NS
Operative blood loss (mL)	138.4 ± 166.2	140.4 ± 198.8	NS
Postoperative stay (d)	23.2 ± 14.3	24.6 ± 14.5	NS
Blood transfusion			0.001
Yes	0 (0)	8 (14.8)
No	68 (100.0)	46 (85.2)
Procedure of surgery			NS
Cecum resection	1 (1.5)	0 (0)
Right hemicolectomy	16 (23.5)	24 (44.4)
Transverse colon resection	2 (2.9)	4 (7.4)
Left hemicolectomy	4 (5.9)	4 (7.4)
Sigmoid colectomy	22 (32.4)	9 (16.7)
Anterior resection	16 (23.5)	9 (16.7)
Hartmann’s resection	2 (2.9)	0 (0)
Mile’s resection	5 (7.4)	4 (7.4)
Lymph node dissection			NS
D0	4 (5.9)	7 (13.0)
D1	10 (14.7)	7 (13.0)
D2	31 (45.6)	30 (55.6)
D3	23 (33.8)	10 (18.5)
Number of lymph nodes resected	12.1 ± 9.0	11.3 ± 8.6	NS
Distal margin distance (mm)	61.0 ± 40.4	62.2 ± 40.9	NS
Proximal margin distance (mm)	96.8 ± 47.6	93.4 ± 57.9	NS
Morbidity			NS
Surgical site infection			NS
Yes	5 (7.4)	7 (13.0)
No	63 (92.6)	47 (87.0)
Anastomotic leakage			NS
Yes	4 (5.9)	3 (5.6)
No	64 (94.1)	51 (94.4)
Others			NS
Yes	8 (11.8)	6 (11.1)
No	60 (88.2)	48 (88.9)

NS: Not significant.