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Table 2 Comorbidities of patients were graded by the American Society for Anesthesia (ASA) Classification

From: Endoscopic papillary large balloon dilation alone without sphincterotomy for the treatment of large common bile duct stones

ASA Classification

Medical description of patients

No. of patients (%)

I

No known systemic disease

115 (46.6)

II

Mild or well controlled systemic disease (s)

43 (17.4)

III

Multiple or moderately controlled systemic disease (s)

63 (25.5)

IV

Poorly controlled systemic disease (s)

26 (10.5)