Table 2 ROC-AUC analysis of metabolites found to be at different levels in infertile heifers compared to fertile heifers (AUC (95% CI)).
Metabolite Tested | AUC | Sensitivity | Specificity | % correctly categorized | % fertile categorized as infertile |
|---|---|---|---|---|---|
Tryptophan | 0.820 (0.625–1.000) | 0.800 (0.800–1.000) | 0.700 (0.416–0.984) | 80 | 10 |
Cystine | 0.720 (0.456–0.984) | 0.700 (0.700–0.984) | 0.800 (0.552–1.000) | 70 | 15 |
Histidine | 0.880 (0.727–1.000) | 0.700 (0.700–0.984) | 1.000 (1.000–1.000) | 90 | 0 |
Ornithine | 0.840 (0.664–1.000) | 0.800 (0.800–1.000) | 0.700 (0.416–0.984) | 70 | 0 |
Asparagine | 0.890 (0.694–1.000) | 0.900 (0.900–1.000) | 0.900 (0.714–1.000) | 70 | 0 |
Glutamine | 0.910 (0.773–1.000) | 0.800 (0.800–1.000) | 1.000 (1.000–1.000) | 90 | 0 |
Lysine | 0.860 (0.659–1.000) | 0.800 (0.800–1.000) | 0.900 (0.714–1.000) | 75 | 0 |
His, Glut, Asp | 0.735 (0.465–1.000) | 0.800 (0.800–1.000) | 0.900 (0.714–1.000) | 85 | 0 |
His, Glut | 0.860 (0.681–1.000) | 0.900 (0.900–1.000) | 0.800 (0.552–1.000) | 90 | 0 |
