Table 3.
Principal components analysis.
| Component | Eigenvalue | Difference | Proportion | Cumulative |
|---|---|---|---|---|
| Component 1 | 7.28 | 4.3 | 0.49 | 0.49 |
| Component 2 | 2.98 | 1.64 | 0.2 | 0.68 |
| Component 3 | 1.33 | 0.33 | 0.09 | 0.77 |
| Component 4 | 1.01 | 0.18 | 0.07 | 0.84 |
| Component 5 | 0.83 | 0.35 | 0.06 | 0.9 |
| Component 6 | 0.48 | 0.15 | 0.03 | 0.93 |
| Component 7 | 0.33 | 0.09 | 0.02 | 0.95 |
| Component 8 | 0.24 | 0.08 | 0.02 | 0.97 |
| Component 9 | 0.16 | 0.05 | 0.01 | 0.98 |
| Component 10 | 0.11 | 0.02 | 0.01 | 0.98 |
| Component 11 | 0.08 | 0.02 | 0.01 | 0.99 |
| Component 12 | 0.07 | 0.03 | 0 | 0.99 |
| Component 13 | 0.04 | 0.01 | 0 | 1 |
| Component 14 | 0.03 | 0.03 | 0 | 1 |
| Component 15 | 0.01 | 0 | 1 |
| Variable | Component 1 | Component 2 |
|---|---|---|
| Log IFNγ | 0.33 | 0.11 |
| Log IL-2 | 0.26 | −0.1 |
| Log IL-4 | 0.08 | 0.45 |
| Log IL-5 | 0.25 | 0.3 |
| Log IL-6 | 0.3 | −0.09 |
| Log IL-8 | 0.31 | −0.01 |
| Log IL-10 | −0.11 | 0.5 |
| Log IL-13 | 0.25 | 0.13 |
| Log IL-17 | 0.01 | 0.39 |
| Log IL-1α | 0.31 | −0.15 |
| Log G-CSF | 0.26 | −0.16 |
| Log GM-CSF | 0.34 | 0.03 |
| Log TNFα | 0.34 | 0.06 |
| Log MIP-1α | 0.3 | −0.17 |
| Log IP-10 | 0.1 | 0.43 |
Principal components analysis of 15 cytokines from supernatants stimulated with M.tb PPD from infants 3 months post-BCG vaccination. Shaded boxes show important cytokines in the component.