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Erythrocyte Sedimentation Rate and C-Reactive Protein in Acute Inflammation: meta-analysis of diagnostic accuracy studies

Objectives: To assess the diagnostic accuracy of erythrocyte sedimentation rate (ESR) and C- reactive protein (CRP) in acute inflammation. Methods: PubMed and Scopus were searched and eligible articles were screened for methodologic quality using the Quality Assessment of the Diagnostic Accuracy Studies– Revised. Meta-analysis with calculation of pooled sensitivity (Se), specificity (Sp), and summary area under the curve (SAUC) was performed. Results: Twenty-nine studies were eligible. Se and Sp were 0.78 and 0.68 (SAUC = 0.80) for ESR in orthopedic infections and 0.79 and 0.70 (SAUC = 0.81) for CRP. For the diagnosis of other various inflammatory conditions, CRP had a superior diagnostic accuracy, with a Se of 0.86, Sp of 0.67, and SAUC of 0.86 compared with a Se of 0.77, Sp of 0.59, and SAUC of 0.75 for ESR. Heterogeneity among studies was elevated. Combined use of ESR and CRP yielded higher diagnostic accuracy. Conclusions: Despite observed heterogeneity among studies, ESR and CRP have a similar diagnostic accuracy in assessment of inflammation, especially in orthopedic conditions.

Erythrocyte sedimentation rate ; C-reactive protein ; Acute phase reaction ; Inflammation ; Diagnostic accuracy ; Meta-analysis

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