Medium-term surgical outcomes and health-related quality of life after laparoscopic vs open colorectal cancer resection: SF-36 health survey questionnaire

Table 2 Comparison of surgical outcomes between patients receiving laparoscopic resection vs those undergoing open resection

Variables	LR (n = 296)	OR (n = 245)	P value
Lymph nodes removed	15.2 ± 4.5	16.3 ± 5.5	0.067
Hospitalization (days)	11.3 ± 2.5	17.6 ± 5.3	< 0.001c
Operation blood loss (mL)	60.5 ± 21.2	156.2 ± 30.4	< 0.001c
Operation time (min)	182.1 ± 35.2	130.5 ± 21.3	< 0.001c
Peri-operative complications
Total	26	62
Ileus (Grade II)	8	11	0.273
Urinary tract infection (Grade II)	3	14	< 0.001c
Wound infection (Grade I)	4	15	< 0.001c
Pneumonia (Grade II)	5	12	0.048a
Anastomosis leakage (Grade IIIb)	6	10	0.14
Abscess drainage, stoma diversion	2	5	0.231
Recurrence within 1 year	0	2	0.054
Long-term (> 1 year) complications
Incisional hernia (Grade I)	4	7	0.261
Ileus (Grade II)	10	14	0.343

^aP ≤ 0.05;

^cP ≤ 0.001.

Grading of complications is according to the criteria of “Clavien-Dindo classification”. LR: Laparoscopic resection; OR: Open resection.