Laparoscopic and open resection for colorectal cancer: an evaluation of cellular immunity

BMC Gastroenterology

Table 1 Baseline characteristics

	LCR (n = 35)	OCR (n = 33)	statistic	P value
Gender
Male	20	20	χ ² = 0.084	0.772
Female	15	13
Age(yr)	68.43 ± 11.16	68.33 ± 12.69	Z = 0.055	0.956
Height(cm)	165.77 ± 8.23	162.36 ± 7.67	t = 1.760	0.082
Weight(kg)	63.30 ± 10.82	60.98 ± 11.33	Z = -1.032	0.302
BMI(kg/m²)	22.95 ± 2.88	22.91 ± 3.22	t = 0.060	0.956
Tumor position
Left hemicolon	5	2	χ ² = 0.002	0.564
Transverse colon	1	2
Right hemicolon	9	13
Sigmoid colon	7	4
Rectum	13	12
Tumor staging of TNM
0	2	0	χ ² = 0.009	0.405
I	2	3
II	20	15
III	11	15
ASA classification
I	2	0	χ ² = -0.083	0.934
II	26	28
III	7	5

ISSN: 1471-230X