Laparoscopic Kasai portoenterostomy can be a standard surgical procedure for treatment of biliary atresia

Table 1 Comparison of patients' characteristics and outcomes of surgery between Open-PE and laparoscopic portoenterostomy groups

	Open-PE	Lap-PE	P value
Number of patients	66	53
Age at surgery	66.0 (32.0-144.0)	55.0 (23.0-116.0)	0.0013
Operation duration	271.5 (167.0-390.0)	341.0 (242.0-512.0)	< 0.0001
Blood loss	52.0 (5.0-363.0)	23.5 (1.0-160.0)	< 0.0001
Time to resume oral intake	6.0 (3.0-14.0)	3.0 (2.0-6.0)	< 0.0001
Time to drain removal	7.0 (3.0-15.0)	6.0 (3.0-16.0)	0.0004
Complete resolution from jaundice case (%)	45 (68.2%)	42 (79.2%)	0.176

Values are presented as median (range) or n (%). P value: Chi-squared or Wilcoxon rank sum test. Open-PE: Open portoenterostomy; Lap-PE: Laparoscopic portoenterostomy.

Table 2 Comparison of outcome of laparoscopic portoenterostomy between qualified and non-qualified surgeons

	Qualified	Non-qualified	P value
Number of patients	34	19
Operation duration (minutes)	324.5 (242-483)	390.0 (253-512)	0.0314
Blood loss (mL)	25.5 (1-160)	23.0 (3-122)	0.9704
Complete release from jaundice (case)	27 (79.4%)	15 (78.9%)	0.9681

Values are presented as median (range) or n (%). P value: Chi-squared or Wilcoxon rank sum test.