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Table 2 Gallstone-related outcomes

From: Ursodeoxycholic acid for the prevention of symptomatic gallstone disease after bariatric surgery: statistical analysis plan for a randomised controlled trial (UPGRADE trial)

 

UDCA (n=)

Placebo (n=)

Effect size

p

Primary outcome

Symptomatic gallstone diseasen (% n/N)

    

  Biliary pancreatitis

    

  Acute cholecystitis

    

  Choledocholithiasis

    

  Cholangitis

    

  Biliary colic

    

Secondary outcomes

Presence of gallstones/sludge on ultrasound at 24 monthsn (% n/N)

    

Newly formed gallstones/sludge on ultrasound at 24 monthsn (% n/N)

    

Cholecystectomyn (% n/N)