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

Table 1 Characteristics of patients who underwent totally laparoscopic distal gastrectomy with or without prophylactic drain

	ALL patients			Propensity-matched patients
Characteristic	Drain (n = 76)	No drain (n = 49)	P value	Drain (n = 42)	No drain (n = 42)	P value
Sex (M/F)	54/22	33/16	0.660	31/11	29/13	0.629
Age	57.58 ± 9.90	54.14 ± 12.63	0.092	57.4 ± 9.9	58.1 ± 10.8	0.739
BMI (kg/m2)	24.71 ± 3.76	24.64 ± 3.72	0.915	24.3 ± 3.5	24.4 ± 2.7	0.879
ASA (1/2/3), n (%)			0.562			0.565
1	1 (1.3)	0 (0.0)		1 (2.4)	0 (0.0)
2	70 (92.1)	44 (89.8)		38 (90.5)	38 (90.5)
3	5 (6.6)	5 (10.2)		3 (7.1)	4 (9.5)
pT stage, n (%)			0.605			0.805
T1	39 (52.0)	24 (49.0)		20 (47.6)	20 (47.6)
T2	10 (13.3)	11 (22.4)		6 (14.3)	10 (23.8)
T3	9 (12)	5 (10.2)		6 (14.3)	4 (9.5)
T4a	17 (22.7)	9 (18.4)		10 (23.8)	8 (19)
pN stage, n (%)			0.888			0.760
N0	34 (44.7)	20 (40.8)		16 (38.1)	18 (42.9)
N1	16 (21.1)	12 (24.5)		9 (21.4)	11 (26.2)
N2	14 (18.4)	7 (14.3)		9 (21.4)	5 (11.9)
N3	12 (15.8)	10 (20.4)		8 (19)	8 (19)
Previous abdominal operation, n (%)	13 (17.1)	13 (26.5)	0.205	6 (14.3)	10 (23.8)	0.266
Neoadjuvant chemotherapy, n (%)	5 (6.6)	2 (4.1)	0.704	4 (9.5)	2 (4.8)	0.676
Concurrent illness, n (%)	34 (44.7)	14 (28.6)	0.070	18 (42.9)	13 (31.0)	0.258

ASA: American Society of Anesthesiologists; pT: Primary tumor; pN: Regional lymph node; BMI: Body mass index.