Table 1. Baseline characteristics.

Variable N (%)	AGPNC, overall N = 150,101	AGPNC without ERCP N = 106,291	AGPNC with ERCP N = 43,810
Age, years mean (SD)	56.4 (19.8)	56.3 (19.7)	56.9 (20.1)
Female gender	91,751 (61.1 %)	63,669 (60.0 %)	28,082 (64.1 %)
Elixhauser Index, median [IQR]	2 [1,4]	2 [1,4]	2 [1,3]
Severe acute pancreatitis (SAP), total	22,788 (15.2 %)	16,722 (15.7 %)	6,066 (13.9 %)
Acute renal failure	15,098 (10.1 %)	11,423 (10.8 %)	3,675 (8.39 %)
Sepsis	8,659 (5.77 %)	6,126 (5.76 %)	2,533 (5.78 %)
Respiratory failure	7,212 (4.80 %)	5,483 (5.16 %)	1,729 (3.95 %)
Shock	2,545 (1.55 %)	2,026 (1.91 %)	519 (1.19 %)
In-hospital mortality	2,009 (1.34 %)	1,656 (1.56 %)	353 (0.81 %)
Length of stay, days mean (SD)	5.89 (6.38)	5.54 (6.31)	6.73 (6.41)

AGPNC, acute gallstone-related pancreatitis without cholangitis; ERCP, endoscopic retrograde cholangiopancreatography; SD, standard deviation; IQR, interquartile range.