Clinical Study

Appropriate Patient Selection in the Management of Common Bile Duct Stones: When Not to Do ERCP

Table 3

Ultrasound findings as separate risk factors for the presence of CBD stones.

Risk factorOdds ratio95% C.I.SensitivitySpecificity

CBD > 7 mm6.532.41–17.746%89%
Visualised CBD stone0.970.2–4.6513%96%