Table 5.

Postoperative administration of omega-3 fatty acids

	Group 1	Group 2	P
Patient number	102	65
Diagnosis (colon /rectal cancer)	42/60	40/25
Gender (male/female)	49/53	45/38	0.089
Tumor stage			0.317
NRS 2002 score	1.94 ± 0.87	2.00 ± 1.15	0.710
Preoperative total lymphocyte count	1.80 ± 0.63	1.93 ± 0.59	0.186
POD1 total lymphocyte count	0.99 ± 0.34	1.11 ± 0.40	0.067
POD5 total lymphocyte count	1.26 ± 0.59	1.29 ± 0.35	0.660
Complications	1.33 ± 0.64	1.13 ± 0.49	0.041
None (= 1)
Infection (= 2)
Fistula (= 3)
Others (= 4)
Postoperative hospital stay (d)	16.04 ± 5.81	14.81 ± 4.29	0.159
Cost of hospitalization (RMB)	43936.75 ± 14260.31	39938.89 ± 10741.40	0.055
Postoperative outcome	1.09 ± 0.33	1.06 ± 0.27	0.055
Recovery (= 1)
Unrecovery (= 2)
Dead (= 3)

Group 1: Patients who received omega-3 fatty acids; Group 2: Patients who did not receive omega-3 fatty acids.