The application value of predication scale of pneumonia after acute stroke

Objective:To evaluate the accuracy and validity of predication scale of pneumonia after acute stroke.Methods:The scores of 312 patients with acute stroke during the admission to hospital were evaluated using the predication scale of pneumonia, and the number of patients infected with pneumonia were observed in the duration of hospital.The accuracy of the predication scale was analyzed using the receiver operating characteristic, the sensitivity, specificity, positive predictive value, negative predictive value, negative likely ratio and positive likely ratio of the predication scale were used to validate its validity.Results:The occurrence rate of pneumonia was 18.9%, which was significantly positive correlation with the score of scale(P<0.01).The receiver operating characteristic curve was established, the area under curve was 0.836(95%CI 0.779 to 0.894, P<0.01).When both sensitivity and specificity were more than 0.50 and taking 3 points was the best, the sensitivity, positive predictive value and positive likely ratio, and the specificity, negative predictive value and negative likely ratio were 69.5%, 52.7% and 3.663, and 81.0%, 89.7% and 0.377, respectively.Conclusions:The accuracy of the predication scale of pneumonia after acute stroke is 83.6%.The validity of scale in detecting of pneumonia after acute stroke has certain limitation, but in excluding pneumonia after acute stroke its value is high.The predication scale has certainly practical value in the predication of pneumonia after acute stroke.