The probability of complications was:
0.026 (range: 0.01 to 0.16) after ERC-S;
0.10 (range: 0.04 to 0.20) after elective LC;
0.25 (range: 0.05 to 0.50) after elective open cholecystectomy;
0.13 (range: 0 to 0.33) after emergent LC; and
0.45 (range: 0.10 to 0.75) after emergent open cholecystectomy.
The probability of death from complications was:
0.33 (range: 0 to 0.38) after ERC-S;
0.05 (range: 0 to 0.25) after LC; and
0.20 (range: 0 to 0.25) after open cholecystectomy.
The probability (per 2 years) of recurrent symptoms in the ERC-S/O strategy was 0.15 (range: 0.08 to 0.47).
The probability (per 2 years) of biliary complications in the ERC-S/O strategy was 0.08 (range: 0.04 to 0.16).
The conversion to open cholecystectomy after elective LC was 0.06 (range: 0.05 to 0.23).
The conversion to open cholecystectomy after emergent LC was 0.16 (range: 0.16 to 0.55).
The probability of death from unrelated causes (per 2 year) was 0.05 (range: 0 to 0.10).