Discriminant model AUC (95% CI) Accuracy Sensitivity Specificity PPV NPV
8 VOCs 0.898 (0.821-0.975) 75.00% 78.57% 72.50% 66.67% 82.86%
8 VOCs + PROs 0.933 (0.874-0.992) 80.88% 75.00% 85.00% 77.78% 82.93%
PROs 0.737 (0.607-867) 77.94% 50.00% 97.50% 93.33% 73.58%