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

Table 1 Comparison of baseline characteristics between patients receiving laparoscopic resection vs those undergoing open resection

Variables	LR (n = 296)	OR (n = 245)	P value
Gender			0.412
Male	162	135
Female	134	110
Age (mean ± SD)	67.2 ± 11.3	70.1 ± 8.9	0.19
ASA class			0.673
I	162	129
II	111	99
III	23	17
Pre-operative TNM stage			0.342
0	9	5
I	93	71
II	99	80
III	95	89
Tumor location			0.452
Cecum	42	31
Ascending colon	57	45
Transverse colon	33	25
Descending colon	51	42
Sigmoid colon	71	62
Rectum	42	40
Pre-surgery serum CEA level			1.021
< 5 ng/mL	51	34
≥ 5 ng/mL	245	211
Pre-operative CCRT	40	39	0.391
Intervention			0.729
Right hemicolectomy	93	76
Left hemicolectomy	64	45
Transverse colectomy	28	22
Sigmoid colectomy	69	60
Proctectomy	39	38
Abdominal perineal resection	3	4
Protective diversional stoma	13	15
Post-operative TNM stage			0.359
0	9	5
I	92	70
II	96	79
III	99	91
Histopathology			0.637
Well differentiated	112	105
Moderate differentiated	122	93
Poorly differentiated	62	47

ASA: American Society of Anesthesiologists; TNM: Tumor, Node and Metastasis; CEA: CarcinoEmbryonic Antigen; CCRT: Concurrent chemoradiotherapy; LR: Laparoscopic resection; OR: Open resection.