Correlation coefficients and p values of significance for the relationship between rectal mucosal release of cytokines and eicosanoids measured with the filter paper technique, and sigmoidoscopic,24 clinical activity,25 and histological26 scores in patients with ulcerative colitis
| Score | Mediator | n |
Correlation coefficient (r) | p Value |
| Sigmoidoscopic score | ||||
| IL-1β | 25 | +0.71 | 0.0001 | |
| TNF-α | 12 | +0.76 | 0.005 | |
| TXB2 | 31 | +0.80 | <0.0001 | |
| PGE2 | 25 | +0.75 | <0.0001 | |
| Clinical activity score | ||||
| IL-1β | 25 | +0.43 | 0.0007 | |
| TNF-α | 12 | +0.89 | 0.02 | |
| TXB2 | 31 | +0.69 | <0.0001 | |
| PGE2 | 25 | +0.51 | 0.009 | |
| Histological score | ||||
| IL-1β | 17 | +0.76 | 0.04 | |
| TNF-α | 10 | +0.71 | <0.0001 | |
| TXB2 | 16 | +0.87 | <0.0001 | |
| PGE2 | 16 | +0.64 | 0.01 |