• Jacob Dynesen, Maj J Skov, Julie Mackenhauer, Marie K Jessen, Janet Y Liesanth, Lotte Ebdrup, and Hans Kirkegaard.
• Research Centre for Emergency Medicine, Aarhus University Hospital/Aarhus University, Aarhus N, Denmark.
• Eur J Emerg Med. 2019 Dec 1; 26 (6): 453-457.

IntroductionEarly warning scores are designed for monitoring hospitalized patients and enable a timely response to deviating vital signs. The aim of this study was to examine whether 7-day mortality, associated with an initial early warning score, differs between age groups. Our hypothesis was that elderly patients are at greater risk of dying compared to a younger patient with a similar early warning score.MethodsThis observational cohort study included adult emergency department patients from five hospitals in Denmark over three consecutive months in 2015. Logistic regression was used to examine the relationship between patients' initial early warning scores category (0, 1-2, 3-4, 5-6, 7+) and 7-day mortality in different age groups (16-59 years, 60-79 years, 80+ years). Mortality rates in each early warning scores category are compared between the youngest patients (16-59 years, reference group) and the two older age groups (60-79 years and 80+ years).ResultsA total of 19 123 emergency patients were included. The senior age groups (60-79 years and 80+ years) both displayed significantly higher 7-day mortality, in all early warning score categories, when compared to the youngest patients (16-59 years). The mortality difference between the youngest (16-59 years) and oldest age group (80+ years) remained significant in all early warning scores categories after adjusting for comorbidity.ConclusionOur findings show that the oldest emergency department patients (80+ years) have a higher 7-day mortality compared to young patients (16-59 years) with a similar initial early warning score.

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