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Diagnosis of invasive fungal disease using serum (1-- 3)-beta-D-glucan: a bivariate meta-analysis Lu Y; Chen YQ; Guo YL; Qin SM; Wu C; Wang KIntern Med 2011[]; 50 (22): 2783-91BACKGROUND: The (1-->3)-beta-D-Glucan (BG) assay has been approved for diagnosing invasive fungal disease (IFD). However, the test performance has been variable. We conducted a meta-analysis to determine the overall accuracy of BG assay for diagnosing IFD. METHODS: The sensitivity, specificity, and positive and negative likelihood ratios (PLR and NLR, respectively) of BG for diagnosing IFD were pooled using a bivariate meta-analysis. We also performed subgroup analyses. RESULTS: Twelve reports, including 15 studies, were included for the analysis (proven and probable IFD vs possible or no IFD). The sensitivity, specificity, PLR and NLR were 0.76 (95% CI, 0.67-0.83), 0.85 (95% CI, 0.73-0.92), 5.05 (95% CI, 2.71-9.43), and 0.28 (95% CI, 0.20-0.39), respectively. Subgroup analyses showed that the BG assay had higher specificities for patients with hematological disorders and a positive BG result with two consecutive samples. The combination of galactomannan and BG increased the specificity value to 0.98 (95% CI, 0.95-0.99) for diagnosing invasive aspergillosis. CONCLUSION: Serum BG determination is clinically useful for diagnosing IFD in at-risk patients, especially for hematology patients. The combination of galactomannan and BG was sufficient for diagnosing invasive aspergillosis. Since the BG assay is not absolutely sensitive and specific for IFD, the BG results should be interpreted in parallel with clinical findings.|Aspergillosis/blood/diagnosis[MESH]|Biomarkers/blood[MESH]|Candidiasis, Invasive/blood/diagnosis[MESH]|Galactose/analogs & derivatives[MESH]|Humans[MESH]|Likelihood Functions[MESH]|Linear Models[MESH]|Mannans/blood[MESH]|Mycoses/*blood/*diagnosis[MESH]|Proteoglycans[MESH]|ROC Curve[MESH]|Sensitivity and Specificity[MESH]|beta-Glucans/*blood[MESH] |
