CRP and Sepsis: The AUCs on ROC Curve analysis for predicting culture-positive sepsis for serum and salivary CRP 0.72 (95% CI: 0.58 to 0.86, p-value: 0.002), 0.83 (95% CI: 0.70 to 0.97, p-value: <0.0001), respectively (Figure 3).