Auc - What is a good AUC value?

The AUC, calculated via the trapezoidal rule, ranges from 0.5 to 1. An AUC of 0.5 denotes no discrimination, meaning the test does not effectively distinguish between patients with and without the condition. An AUC between 0.7 and 0.8 is deemed acceptable, 0.8 to 0.9 is excellent, and anything above 0.9 is outstanding.