بررسی میزان حساسیت و اختصاصی بودن معیار Boston Weighted (BW) و معیار American college of Rheumatology (ACR) در تشخیص بیماران مبتلا به لوپوس اریتماتوی سیستمیک

  Background: Different criteria have been used for classification of SLE as ACR and BW criteria (BW). In BW criteria every item has score. The outcome of this study is comparison of ACR with BW criteria diagnosis of SLE.   Methods: All SLE patients who referred to rheumatology clinic of Rasool Akram hospital were enrolled in this study that was from 2004 to 2006. All data recorded of medical file and specialists to rheumatologist diagnosis were enrolled in this study.   Results: All patients (67:2 m, 65 f) were diagnosed by rheumatologist as a SLE. 61 patients full filled ACR criteria (91%) and 62 patients full filled BW criteria (92%). Sensitivity and specificity of BW criteria was 98% and 67% respectively. Positive predictive value and negative predictive value of BW Criteria was 96.7% and 80% respectively. Agreement between two criteria was 0.703 according to kappa (0.703) and P value was<0.001. Conclusion: In this study sensitivity of BW criteria was more than ACR criteria (98% versus 91%) and specificity BW criteria was less than ACR criteria (67% versus 71.9%).