Laparoscopic versus Open Surgery for Colorectal Cancer: A Retrospective Analysis of 163 Patients in a Single Institution

Table 2

Operative and postoperative results of the two patient groups.

	LCRS group; ()	OCRS group; ()
Operation time (min), mean ± SD	216 ± 53	172 ± 48	0.039^†
Operative blood loss (mL), mean ± SD	140 ± 35	220 ± 45	0.040^†
Time to flatus (d), mean ± SD	1.6 ± 1.4	2.3 ± 1.7	0.014^†
Time to liquid diet (d), mean ± SD	2.3 ± 1.9	2.9 ± 2.3	0.032^†
Time to normal diet (d), mean ± SD	3.4 ± 2.2	4.2 ± 2.8	0.030^†
Stay in ICU (d), mean ± SD	2.3 ± 2.7	2.4 ± 4.4	NS
Total hospital stay (d), mean ± SD	4.5 ± 4.0	6.2 ± 5.3	0.028^†

NS: not significant. ICU: intensive care unit.
^†Student’s -test.