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

Table 3 Comparison of cyst classification and infection in 152 patients

Group			Complications		Total	χ2	P value
			Infection	None
ERPD group	Classification	I	0	7	7	6.271	0.043
		II	2	37	39
		III	10	36	46
	Total		12	80	92
Two-step procedure	Classification	I	0	0	0	1.379	0.240
		II	0	24	24
		III	2	34	36
	Total		2	58	60
Total	Classification	I	0	7	7	6.339	0.042
		II	2	61	64
		III	12	70	81
	Total		14	138	152

Two-step procedure: Endoscopic naso-pancreatic drainage combined with endoscopic retrograde pancreatic drainage sequential therapy. P < 0.05 was considered statistically significant. ERPD: Endoscopic retrograde pancreatic drainage; ENPD: Endoscopic naso-pancreatic drainage.