Clinical significance of serum procalcitonin in patients with ulcerative colitis

Figure 1 Scatter dot plot of biological markers in mild-to-moderate and severe ulcerative colitis patients. A: Procalcitonin (PCT) levels; B: C-reactive protein levels (CRP); C: The erythrocyte sedimentation rate (ESR); D: The total white blood cell (WBC) count were examined in healthy volunteers or mild-to-moderate and severe ulcerative colitis patients. Serum PCT levels in healthy volunteers were used as a control. Based on our laboratory reference, the normal limits for the other inflammatory variables were a CRP level of 0.0-0.3 mg/dL, a WBC count of 3300-8600 count/μL, and an ESR of 2-19 mm/h. The results are expressed as the mean ± SD. ^bP < 0.01 vs healthy or mild-to-moderate group. NS: Not significant.

Figure 2 Correlation of serum procalcitonin levels with C-reactive protein levels in patients with ulcerative colitis. The two curves represent the 95%CI for the regression line. This interval includes the true regression line, with a 95% probability. There was a significant correlation between procalcitonin (ng/mL) and C-reactive protein (mg/dL) levels (r = 0.2776, P = 0.0247).

Figure 3 Serum procalcitonin and C-reactive protein levels in patients with Mayo endoscopic subscore of 2 or 3 points. A: Procalcitonin; B: C-reactive protein levels were examined in patients with a Mayo endoscopic subscore of 1 (n = 1), 2 (n = 5), or 3 (n = 8) points. The results are expressed as the mean ± SD. ^aP < 0.05 vs score 2 group. NS: Not significant.