Table 4.
Statistically significant correlations in patients with plaque psoriasis.
| Pair of Variables | Group | r | p |
|---|---|---|---|
| NO NWS and NWS flow rate | PH | −0.68 | 0.001 |
| Peroxynitrite SWS and total protein SWS | PH | −0.56 | 0.0015 |
| TNF-α NWS and NWS flow rate | PH | −0.60 | 0.004 |
| IL-2 SWS and SWS flow rate | PH | −0.54 | 0.002 |
| Peroxynitrite NWS and amylase NWS | PN | −0.58 | 0.0008 |
| Peroxynitrite SWS and amylase SWS | PN | −0.68 | <0.0001 |
| TNF-α NWS and NO NWS | PH | 0.60 | 0.004 |
| IL-2 NWS and NO NWS | PN | 0.64 | 0.002 |
| TNF-α NWS and PASI | PH | 0.59 | 0.0006 |
| IL-2 NWS and PASI | PH | 0.63 | 0.0029 |
| Nitrotyrosine NWS and disease duration | PN | 0.53 | 0.003 |
| Nitrotyrosine SWS and disease duration | PN | 0.58 | 0.001 |
| Nitrotyrosine NWS and disease duration | PH | 0.61 | 0.004 |
| Nitrotyrosine SWS and disease duration | PH | 0.60 | <0.0001 |
Abbreviations: IL-2—interleukin 2; NO—nitric oxide; NWS—non-stimulated whole saliva; PN—psoriasis patients with normal salivation; PH—psoriasis patients with hyposalivation; SWS—stimulated whole saliva; TNF-α—tumor necrosis factor-alpha.