Endoscopic retrograde cholangiopancreatography for bile duct stones in patients with a performance status score of 3 or 4

Table 2 Comparison of endoscopic retrograde cholangiopancreatography-related complications between patients with a performance status score of 0-2 and 3-4

	All patients		P value	Propensity score-matched patients		P value
	Patients with a PS 0-2 (n = 1113)	Patients with a PS 3 or 4 (n = 230)		Patients with a PS 0-2 (n = 196)	Patients with a PS 3 or 4 (n = 196)
Overall complications, n (%)	100 (9.0)	16 (7.0)	0.37	9 (4.6)	13 (6.6)	0.51
Severity of overall complications			0.063			0.042
Mild (%)	65 (65.0)	6 (37.5)		7 (77.8)	3 (23.1)
Moderate (%)	29 (29.0)	8 (50.0)		2 (22.2)	8 (61.5)
Severe (%)	6 (6.0)	2 (12.5)		0 (0.0)	2 (15.4)
PEP (%)	50 (4.5)	5 (2.2)	0.14	3 (1.5)	2 (1.0)	1.0
Severity of PEP (%)			0.034			0.10
Mild (%)	34 (68.0)	3 (60.0)		3 (100.0)	0 (0.0)
Moderate (%)	14 (28.0)	0 (0.0)		0 (0.0)	0 (0.0)
Severe (%)	2 (4.0)	2 (40.0)		0 (0.0)	2 (100.0)
Bleeding (%)	18 (1.6)	4 (1.7)	0.78	1 (0.5)	4 (2.0)	0.37
Severity of bleeding (%)			0.12			0.40
Mild (%)	12 (66.7)	1 (25.0)		1 (100.0)	1 (25.0)
Moderate (%)	3 (16.7)	3 (75.0)		0 (0.0)	3 (75.0)
Severe (%)	3 (16.7)	0 (0.0)		0 (0.0)	0 (0.0)
Cholangitis (%)	18 (1.6)	4 (1.7)	0.78	3 (1.5)	4 (2.0)	1.0
Severity of cholangitis (%)			0.077			0.49
Mild (%)	14 (77.8)	1 (25.0)		2 (66.7)	1 (25.0)
Moderate (%)	4 (22.2)	3 (75.0)		1 (33.3)	3 (75.0)
Perforation (%)	10 (0.9)	0 (0.0)	0.23	1 (0.5)	0 (0.0)	1.0
Severity of perforation (%)			1.0			NA
Mild (%)	4 (40.0)	0 (0.0)		0 (0.0)	0 (0.0)
Moderate (%)	5 (50.0)	0 (0.0)		1 (100.0)	0 (0.0)
Severe (%)	1 (10.0)	0 (0.0)		0 (0.0)	0 (0.0)
Pneumonia (%)	4 (0.4)	3 (1.3)	0.10	1 (0.5)	3 (1.5)	0.62
Severity of aspiration pneumonia (%)			1.0			1.0
Mild (%)	1 (25.0)	1 (33.3)		1 (100.0)	1 (33.3)
Moderate (%)	3 (75.0)	2 (66.7)		0 (0.0)	2 (66.7)

PEP: Post-endoscopic retrograde cholangiopancreatography pancreatitis; PS: Performance status; NA: Not available.