Fig. 3From: Prognostic clinical indexes for prediction of acute gangrenous cholecystitis and acute purulent cholecystitisROC curve of the percentage of white blood cell for acute exacerbation of chronic cholecystitis and acute gangrenous cholecystitis. The area under curve: 0.7137; 95% CI 0.6307–0.7966; P < 0.0001Back to article page