Table 6. Rate of severe pancreatitis in patients with idiopathic acute and recurrent acute pancreatitis.

Severity index (considered severe)	MMPD	Non-MMPD
CECT score (> = 2) [16]	1/4 [25%]	3/7 [43%]
NECT score (> = 4) [17], [18]	1/4 [25%]	3/9 [33%]
JPN score 2008 (> = 3) [16]	0/5 [0%]	0/11 [0%]
Ranson score (> = 3) [19]	0/5 [0%]	1/11 [9%]
Modified Glasgow score (> = 3) [20]	0/5 [0%]	1/11 [9%]

CECT, contrast enhanced computed tomography; JPN, Japan; MMPD, meandering main pancreatic duct; NECT, non-enhanced computed tomography.