Feasibility of totally laparoscopic gastrectomy without prophylactic drains in gastric cancer patients

Table 5 Risk assessment for the occurrence of postoperative complication

Variable	Postoperative complications (+) (n = 17)	Postoperative complications (-) (n = 108)	P value
Sex			0.584
Male	13	74
Female	4	34
Age	59.59 ± 9.62	55.70 ± 11.30	0.182
BMI (kg/m2), n (%)	27.44 ± 3.92	24.25 ± 3.53	0.001
≥ 29	5 (38.5)	10 (13.3)	0.042
< 29	8 (61.5)	65 (86.7)
ASA (1/2/3), n (%)			0.769
1	0 (0.0)	1 (100.0)
2	15 (13.2)	99 (86.8)
3	2 (20.0)	8 (80.0)
Preoperative ALB (g)	39.62 ± 4.65	40.18 ± 5.86	0.709
Preoperative HGB (g/L)	136.59 ± 17.77	135.26 ± 19.36	0.791
pT stage, n (%)			0.776
T1	7 (38.5)	56 (49.3)
T2	4 (23.1)	17 (20.0)
T3	3 (15.4)	11 (8.0)
T4a	3 (23.1)	23 (22.7)
pN stage, n (%)			0.872
N0	8 (38.5)	46 (45.3)
N1	3 (15.4)	25 (22.7)
N2	3 (23.1)	18 (13.3)
N3	3 (23.1)	19 (18.7)
Previous abdominal operation			0.103
Yes	1	25
No	16	83
Neoadjuvant chemotherapy			0.234
Yes	2	5
No	15	103
Concurrent illness			0.800
Yes	7	41
No	10	67
Drain, n (%)	12 (15.8)	64 (84.2)	0.374
No drain, n (%)	5 (10.2)	44 (89.8)
Type of reconstruction, n (%)			0.357
Billroth I	4 (30.8)	32 (36.0)
Billroth II	10 (61.5)	69 (64.0)
Roux-en-Y	3 (7.7)	7 (0.0)
Operative time (min)	195.82 ± 49.12	183.16 ± 41.69	0.258
Blood loss (mL)	62.94 ± 42.54	82.22 ± 74.07	0.298

ASA: American Society of Anesthesiologists; BMI: Body mass index; ALB: Albumin; HGB: Hemoglobin; pT: Primar tumor; pN: Regional lymph node.