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  • Title: Preliminary case-control study to evaluate diagnostic values of C-reactive protein and erythrocyte sedimentation rate in differentiating active Crohn's disease from intestinal lymphoma, intestinal tuberculosis and Behcet's syndrome.
    Author: Liu S, Ren J, Xia Q, Wu X, Han G, Ren H, Yan D, Wang G, Gu G, Li J.
    Journal: Am J Med Sci; 2013 Dec; 346(6):467-72. PubMed ID: 23689052.
    Abstract:
    BACKGROUND: There are few evidences of C-reactive protein (CRP), erythrocyte sedimentation rate (ESR) and white blood cell (WBC) in differentiating active Crohn's disease (CD) from intestinal lymphoma (IL), intestinal tuberculosis (ITB) and Behcet's syndrome (BD). This study is designed to investigate potential differential capacity of the 3 biomarkers between these disorders. METHODS: A hospital-based case-control study was performed. A total of 29 active CD, 25 IL, 30 ITB and 17 BD patients were collected. Laboratory parameters were drawn from the first blood test results on admission. RESULTS: In active CD group, the level of CRP was 20.2 ± 4.26 mg/dL, which was statistically lower than IL (59.9 ± 10.8 mg/dL, P < 0.0001). Similarly, the level of ESR reached its lowest point in active CD group (23.8 ± 3.18 mm/hr), compared with 46.6 ± 6.46 mm/hr in IL group (P = 0.0002). CRP showed a possible diagnostic value in differentiation of IL from active CD (odds ratio = 1.028, P = 0.046). CRP also exhibited a superior ability (area under curve [AUC] = 0.821) than ESR (AUC = 0.797) and CRP+ESR (AUC = 0.800) in distinguishing active CD from IL. The optimal cutoff value was 19.7 mg/dL, and the sensitivity and specificity were 62.1% and 96.0%, respectively. CONCLUSIONS: A significant decreased level of CRP and ESR was confirmed in active CD compared with IL. Current study demonstrated a possible differential value of CRP between active CD and IL. Further studies would be performed to validate their clinical significances.
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