Figure 1.

Flow diagram for the acute pancreatitis participants’ selection process.

Notes: ^aAcute pancreatitis was defined as presence 2 of the following three criteria: abdominal pain suggestive of AP; serum lipase or amylase levels 3 or more times normal; and characteristic findings of AP on imaging. ^bExclusion criteria as conditions that could act as confounders for our variables were the history of recurrence of AP, other pancreatic disorders (eg chronic pancreatitis, pancreatic mass or cyst, and previous pancreatic surgery or trauma), pregnancy, known case of malignancy, illicit drug abusers, and non-cooperative patients. ^cMetabolic syndrome was defined based on National Cholesterol Education Program Adult Treatment Panel III (NCEP/ATP-III).

Abbreviations: RAC, revised Atlanta classification; BISAP, Bedside Index of Severity in Acute Pancreatitis.