Sequential therapy with combined trans-papillary endoscopic naso-pancreatic and endoscopic retrograde pancreatic drainage for pancreatic pseudocysts

Table 1 Patient demographics

Variable		Grouping by surgery		χ2 / t	P value
		ERPD	Two-step procedure
Gender	Male	58	35	0.339	0.560
	Female	34	25
Age (yr) mean ± SD	-	47.7 ± 16.21	47.42 ± 15.34	0.066	0.947
Source/Location	Biliary	39	35	9.249	0.100
	High fat	28	16
	Alcoholic	14	9
	Post-operation	3	0
	Trauma	6	0
	Pancreatic fistula	2	0
Part	Body of the pancreas	30	15	1.705	0.426
	Head of the pancreas	20	18
	Tail of the pancreas	42	27

Two-step procedure: Endoscopic naso-pancreatic drainage combined with endoscopic retrograde pancreatic drainage sequential therapy. P < 0.05 was considered statistically significant. Data shown are the mean ± SD. ERPD: Endoscopic retrograde pancreatic drainage; ENPD: Endoscopic naso-pancreatic drainage; SD: Standard deviation.