Table 1.
Significant (p <0.05) m/z values discriminating samples from the two groups
| Mean m/z value | p-value | Tendency* |
|---|---|---|
| 3163.4 |
0.008 |
↓ |
| 1454.2 |
0.009 |
↑ |
| 3154.4 |
0.012 |
↓ |
| 2621.9 |
0.013 |
↓ |
| 5378.5 |
0.023 |
↓ |
| 1062.1 |
0.035 |
↑ |
| 3016.1 |
0.042 |
↓ |
| 5435.2 |
0.042 |
↓ |
| 2213.2 | 0.045 | ↓ |
*Tendency, m/z value intensity trend between the two groups: ↑, higher intensity in group B than A; ↓, lower intensity in group B than A. m/z, mass-to-charge ratio. A, the orthodontic patients without periodontitis; B, the orthodontic patients with periodontitis.