Table 5. Correlations between ADA and DPP-IV activity and sCD26 concentration in PE according to the groups under study.
| n | R- Pearson | P- Pearson | R-Spearman | P-Spearman | ||
|---|---|---|---|---|---|---|
| BPE: TPE | sCD26 vs ADA | 30 | - | - | 0.230 | 0.222 |
| sCD26 vs DPP-IV | 30 | - | - | 0.689 | 0.000 | |
| ADA vs DPP-IV | 30 | 0.039 | 0.839 | - | - | |
| BPE: Pneumonic | sCD26 vs ADA | 21 | - | - | −0.331 | 0.143 |
| sCD26 vs DPP-IV | 29 | - | - | 0.008 | 0.968 | |
| ADA vs DPP-IV | 21 | - | - | 0.466 | 0.033 | |
| BPE: Miscellaneous | sCD26 vs ADA | 10 | - | - | 0.224 | 0.533 |
| sCD26 vs DPP-IV | 9 | - | - | 0.067 | 0.865 | |
| ADA vs DPP-IV | 8 | −0.209 | 0.619 | - | - | |
| BPE: Non neoplasic | sCD26 vs ADA | 15 | - | - | −0.196 | 0.483 |
| sCD26 vs DPP-IV | 17 | 0.796 | 0.000 | - | - | |
| ADA vs DPP-IV | 14 | - | - | −0.323 | 0.260 | |
| MPE: Epithelial | sCD26 vs ADA | 50 | 0.217 | 0.130 | - | - |
| sCD26 vs DPP-IV | 54 | - | - | 0.444 | 0.001 | |
| ADA vs DPP-IV | 48 | - | - | 0.115 | 0.437 | |
| MPE: mesothelioma | sCD26 vs ADA | 5 | 0.988 | 0.001 | - | - |
| sCD26 vs DPP-IV | 4 | - | - | 0.400 | 0.600 | |
| ADA vs DPP-IV | 3 | - | - | 0.500 | 0.667 |
n: Number of samples analysed, with statistically significant differences shown in bold type. Pearson's analysis was used for normally distributed samples, and Spearman's analyses was used for non-normally distributed samples.