Table 1

Patient characteristics and concentrations of NOx in plasma from patients with collagenous colitis, ulcerative colitis, or uninflamed bowel

Colonic involvementEndoscopic activity
Histological activity score
DiagnosisnSex (M/F)Age
PSExtensiveE0E1E2E3H0H1H2H324 h stool volume (ml)Oral 5-ASAPlasma NOx (μM)
Collagenous colitis82/670 (3)088000687 (112)0111  (20)1-160
Ulcerative colitis94/534 (3)1-150 4500540063482 (9)1-160
Uninflamed bowel106/455 (7)1-150 1000010000027 (2)
  • Values represent number of patients unless otherwise stated. In ulcerative colitis, disease activity was defined endoscopically (E0–E3) and histologically (H0–H3).

  • 5-ASA, 5-aminosalicylic acid; Extensive, left sided colitis or pancolitis; NOx, nitrite/nitrate; PS, proctosigmoiditis.

  • 1-150 p<0.05 compared with collagenous colitis;

  • 1-160 p<0.001 compared with uninflamed bowel.