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The number of metabolites significantly different in each cluster.
| Differences between sampling methods | Number of metabolites | ||
|---|---|---|---|
| Cluster 1 | Cluster 2 | Cluster 3 | |
| Significant difference* USa vs. MWb | 14 | 1 | 13 |
| Significant difference* US vs. SSc | 38 | 2 | 1 |
| Significant difference* SS vs. MW | 39 | 1 | 12 |
| No significant difference in any comparison | 51 | 34 | 23 |
*p < 0.05, Steel–Dwass test.
aUnstimulated Saliva.
bMouth-rinsed Water.
cStimulated Saliva.
