Complication	Percentage
Biliary colic	70 to 80†
Acute cholecystitis	10
Emphysematous cholecystitis	<1‡
Mirizzi's syndrome	<1‡
Hydrops of the gallbladder	<1‡
Small bowel obstruction (gallstone ileus)	1‡
Gastric outlet obstruction (Bouveret's syndrome)	<1‡
Perforation of gallbladder	12‡
Acute biliary pancreatitis	—
Acute suppurative/obstructive cholangitis	—