Ability of lactate associated with APACHEⅡscore to predict prognosis of senile patients with community-acquired pneumonia

LIU Siqi; WANG Qi; XIANG Hua

doi:10.3969/j.issn.2095-3402.2018.02.019

Abstract：Objective To study the ability of lactate associated with APACHEⅡ score to predict the prognosis of senile patients with community-acquired pneumonia. Methods Ninety-eight emergency admitted patients with community-acquired pneumonia above 60 years of age were picked from our hospital throughout 2016. These patients were divided into the death group and survival group according to survival status on day 28. The blood lactate and APACHEⅡscores of both groups were retrospectively studied. The ability of lactate combined with APACHEⅡ to predict the prognosis of senile patients with CAP was evaluated. Results Levels of lactate of the death group were significantly higher than those of the survival group. Lactate and APACHEⅡ scores were positively correlated. With the increase of lactate, the APACHEⅡ score was also on the rise. According to the receiver operator characteristic curve (ROC), the associated areas under the curve (AUC) that represented the ability of the variables to determine the mortality for lactate, APACHEⅡscores, and lactate combined with APACHEⅡ scores were 0.796, 0.746, and 0.809, respectively, which meant the ability of lactate was better while both of them could predict mortality, but the ability of lactate associated with APACHEⅡ scores was better than when either of them was used alone. Conclusion Lactate and APACHEⅡ scores can be independent factors for prediction of 28-day mortality for senile patients with community-acquired pneumonia. A combination of these two factors can lead to better predictions.