Table 7.
Models used in PLS-DA of the metabolome profiles in plasma and urine
| Model | No. of observations | No. of observations after outlier removal | Initial feature no. | Final feature no. | PC no. | evY1calibrated | evY validated | R 2 |
|---|---|---|---|---|---|---|---|---|
| EBV | ||||||||
| Urine negative | 78 | 72 | 2,374 | 414 | 5 | 88.4 | 56.9 | 0.557 |
| Urine positive | 78 | 75 | 4,302 | 823 | 5 | 86.8 | 59.1 | 0.578 |
| Plasma negative | 78 | 194 | 1 | 33.7 | −28.0 | −0.022 | ||
| Plasma positive | 67 | 65 | 482 | 63 | 4 | 60.0 | 29.8 | 0.311 |
| Dietary protein supply | ||||||||
| Urine negative | 78 | 72 | 2,374 | 426 | 3 | 82.4 | 64.9 | 0.639 |
| Urine positive | 78 | 73 | 4,302 | 842 | 3 | 82.8 | 65.4 | 0.646 |
| Plasma negative | 78 | 78 | 194 | 33 | 3 | 64.4 | 51.2 | 0.502 |
| Plasma positive | 67 | 65 | 482 | 61 | 4 | 76.5 | 56.0 | 0.558 |
1Explained variation in Y.