Machine learning models predict coagulopathy in spontaneous intracerebral hemorrhage patients in ER

• DOI: 10.1111/cns.13509
• Publication Date: 2020-11-29T04:24:32Z
• Authors: Fengping Zhu; Zhiguang Pan; Ying Tang; Pengfei Fu; Sijie Cheng; Wenzhong Hou; Qi Zhang; Hong Huang; Yirui Sun
• Keywords: Adult; Male; 0301 basic medicine; Original Articles; Blood Coagulation Disorders; Middle Aged; 3. Good health; Cohort Studies; Machine Learning; 03 medical and health sciences; Predictive Value of Tests; Humans; Female; Emergency Service, Hospital; Algorithms; Aged; Cerebral Hemorrhage; Retrospective Studies

AbstractAimsCoagulation abnormality is one of the primary concerns for patients with spontaneous intracerebral hemorrhage admitted to ER. Conventional laboratory indicators require hours for coagulopathy diagnosis, which brings difficulties for appropriate intervention within the optimal window. This study evaluates the possibility of building efficient coagulopathy prediction models using data mining and machine learning algorithms.MethodsA retrospective cohort enrolled 1668 cases with acute spontaneous intracerebral hemorrhage from three medical centers, excluding those under antithrombotic therapies. Coagulopathy‐related clinical parameters were initially screened by univariate analysis. Two machine learning algorithms, the random forest and the support vector machine, were deployed via an approach of four‐fold cross‐validation to screen out the most important parameters contributing to the occurrence of coagulopathy. Model discrimination was assessed using metrics, including accuracy, precision, recall, and F1 score.ResultsAlbumin/globulin ratio, neutrophil count, lymphocyte percentage, aspartate transaminase, alanine transaminase, hemoglobin, platelet count, white blood cell count, neutrophil percentage, systolic and diastolic pressure were identified as major predictors to the occurrence of acute coagulopathy. Compared to support vector machine, the model based on the random forest algorithm showed better accuracy (93.1%, 95% confidence interval [CI]: 0.913‐0.950), precision (92.4%, 95% CI: 0.897‐0.951), F1 score (91.5%, 95% CI: 0.889‐0.964), and recall score (93.6%, 95% CI: 0.909‐0.964), and yielded higher area under the receiver operating characteristic curve (AU‐ROC) (0.962, 95% CI: 0.942‐0.982).ConclusionThe constructed models exhibit good prediction accuracy and efficiency. It might be used in clinical practice to facilitate target intervention for acute coagulopathy in patients with spontaneous intracerebral hemorrhage.