CRP and bacterial infectious disease: A systematic review evaluating the accuracy of procalcitonin (PCT) and CRP levels for the diagnosis of bacterial infection revealed that PCT level was more sensitive (88%, 95% CI 80–93% vs. 75%, 95% CI 62–84%) and more specific (81%, 95% CI 67–90% vs. 67%, 95% CI 56–77%) compared with CRP level in differentiating bacterial from non-infectious causes of inflammation [33].