Table 3 C-reactive protein (CRP) levels at diagnosis in 176 patients with Crohn’s disease according to localisation and behaviour of disease and for all patients with Crohn’s disease
Terminal ileum L1, n = 46Colon L2, n = 77Ileocolon L3, n = 50Upper GI L4, n = 3
Mean/median44/2854/3354/3238/37
SEM7.77.07.33.2
Range0–2380–2660–23033–44
Number of patients with CRP⩽10 mg/l14 (30%)20 (26%)10 (20%)0 (0%)
Number of patients with CRP 11–50 mg/l18 (39%)31 (40%)19 (38%)3 (100%)
Number of patients with CRP 51–99 mg/l8 (17%)15 (20%)12 (24%)0 (0%)
Number of patients with CRP⩾100 mg/l6 (13%)11 (14%)9 (18%)0 (0%)
Nonstricturing nonpenetrating B1, n = 106Stricturing B2, n = 49Penetrating B3, n = 21All patients with Crohn’s disease, n = 176
Mean/median50/2656/4249/3551/33
SEM5.87.69.04.1
Range0–2660–2300–1520–266
Number of patients with CRP⩽10 mg/l32 (30%)8 (16%)4 (19%)44 (25%)
Number of patients with CRP 11–50 mg/l41 (39%)21 (43%)9 (43%)71 (40%)
Number of patients with CRP 51–99 mg/l17 (16%)12 (25%)6 (29%)35 (20%)
Number of patients with CRP⩾100 mg/l16 (15%)8 (16%)2 (10%)26 (15%)
  • SEM, standard error of the mean.