CRP and pneumonia: We then weighted the regression coefficients of these risk factors included in the regression model and developed a risk score formula for predicting the likelihood of severe pneumonia: Risk score = −2.12 + 0.053 (Respiratory rate) − 0.915 (Weight) + 0.156 (CRP) + 0.349 (NEU) − 0.013 (HGB) + 0.004 (UA) + 0.192 (BUN).