Laparoscopic D3 lymph node dissection with left colic artery and first sigmoid artery preservation in rectal cancer

Table 1 Patients’ baseline characteristics after PSM

Total	Group 1	Group 2	P value
Total	56	56	P value
Age at surgery (years)
<60	20	17	0.547
≥60	36	39	0.547
Gender
Female	21	27	0.252
Male	35	29	0.252
BMI (kg/m²)
Underweight	10	8	0.617
Normal	33	38
Overweight and obese	13	10
ASA score
1	5	7	0.706
2	37	33
3	14	16
Tumor size (cm)
<4	31	33	0.703
≥4	25	23	0.703
Tumor location (cm)
<10	31	23	0.130
≥10	25	33	0.130
Tumor stage(UICC)
I	9	9	0.825
II	21	24
III	26	23
Loop ileostomy
No	50	48	0.568
Yes	6	8	0.568
Neoadjuvant therapy
No	52	53	0.696
Yes	4	3	0.696

BMI classifications using Chinese BMI classification. Tumor location according to distal tumor margin distance from the anal verge

ISSN: 1477-7819