The AUC on ROC curve analysis for predicting culture-positive sepsis was 0.72 (95% CI: 0.58 to 0.86, p-value: 0.002) for serum CRP and 0.83 (95% CI: 0.70 to 0.97, p-value: <0.0001) for salivary CRP. The gene discussed is CRP; the disease is Sepsis.