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

Table 2 Operative findings

Variable	All patients			Propensity-matched patients
	Drain (n = 76)	No drain (n = 49)	P value	Drain (n = 42)	No drain (n = 42)	P value
Operation time (min)	198.4 ± 41.0	164.0 ± 37.0	< 0.001	180.2 ± 33.4	168.0 ± 36.7	0.113
Estimated blood loss (mL)	85.3 ± 80.7	70.82 ± 51.5	0.267	72.9 ± 45.8	73.8 ± 54.4	0.931
Intraoperative blood transfusion, n (%)	2 (2.6)	2 (4.1)	0.645	1 (2.4)	2 (4.8)	1.000
Tumor size (cm)	3.5 ± 1.6	3.6 ± 1.5	0.664	3.6 ± 1.7	3.5 ± 1.4	0.839
No. of retrieved lymph nodes	36.7 ± 13.7	39.1 ± 14.2	0.346	40.0 ± 11.2	40.0 ± 15.1	0.923