Pirneskoski J, et al. - Researchers used large population-based databases to assess the accuracy of National Early Warning Score (NEWS) in predicting short-term mortality in a prehospital setting. A total of 35,800 patients 18 years or older with sufficient prehospital data to calculate NEWS from August 17, 2008 to December 18, 2015 were included. These patients interacted with the emergency medical services (EMS) in the Hospital District of Helsinki and Uusimaa, Finland. Death within one day of EMS dispatch was the primary outcome measure. Participants had a mean (SD) age of 65.8 (19.9) years. The estimated median value of NEWS was 3 (IQR 1-6). For primary outcome of death within one day, the generated area under receiver operating characteristic curve (AUROC) was 0.840 (95% CI 0.823-0.858). Overall, good diagnostic accuracy of prehospital NEWS was seen for predicting mortality within one day of EMS dispatch.