Table 2.
Results of Principal Component Analysis
| Principal Component | Metabolites Within Component | Description of Component | Eigen Value | Proportion of Variance Explained by Component | Cumulative Proportion of Variance |
|---|---|---|---|---|---|
| 1 | C0, C14, C16, C16:1, C18, C18:1, C18:2, C5 | Long-chain acylcarnitines, C0, and C5 | 11.30 | 0.30 | 0.30 |
| 2 | C12-OH, C14-OH, C14:1-OH, C16:OH, C16:1-OH, C18:OH, C18:1-OH, C18:2-OH | 3-Hydroxy long-chain acylcarnitines | 4.04 | 0.11 | 0.41 |
| 3 | C2, C3, C4, C4-OH, C5-OH, C3-DC, C4-DC, C5-DC, C8:1 | Short-chain and BCAA-related acylcarnitines | 3.18 | 0.08 | 0.49 |
| 4 | C5:1, C10:1, C10:2, C12:1, C14:2 | Unsaturated medium- and long-chain acylcarnitines | 2.71 | 0.07 | 0.56 |
| 5 | Leucine, isoleucine, valine | BCAAs | 2.11 | 0.06 | 0.62 |
| 6 | C6-DC, C12 | C6-DC and C12 acylcarnitines | 1.57 | 0.04 | 0.66 |
| 7 | C6, C8, C10, C14:1 | Medium-chain acylcarnitines and C14:1 | 1.31 | 0.03 | 0.69 |