When both methods were taken into consideration, for predicting F ≥2, we obtained 45.3% Se, 100% Sp, 100% PPV, 69.5% NPV and 0, 73 AUROC, while for predicting F ≥3 we obtained 40% Se, 98.9% Sp, 92.3% PPV, 83% NPV and 0.7 AUROC.