[A validation study of national early warning score in evaluation of death risk in elderly patients with critical illness].

Objective: To verify the validity and feasibility of national early warning score (NEWS) in evaluation of death risk in elderly patients with critical illness,in order to find out which scoring method is more suitable for elderly critical illness patients.

Methods: A prospective case-control study was conducted. The critical illness patients aged over 60 years old with the length of hospital stay over 24 hours, and admitted to Department of Emergency of Qingdao Municipal Hospital from January to December 2015 were enrolled.