August 14, 2025Open Access

COVID-19: association of the National Early Warning Score with triage categories, severity and outcomes

Key Points

Patients with higher National Early Warning Score exhibited significant associations with clinical deterioration, likely increasing mortality risk.
Mean age of 59.4 years in the cohort of 356 COVID-19 cases revealed a clear link between triage categories and clinical outcomes.
Retrospective cohort design included chi-square and Kruskal-Wallis tests, establishing KEY outcomes related to the NEWS2 rating.
Findings suggest that effective triage may rely on scores that predict adverse events, highlighting the need for urgent clinical responses.

Abstract

to identify the association of the National Early Warning Score (NEWS2) and NEWS Age with risk categories, severity markers and outcomes in the emergency department. retrospective cohort study, conducted in a high-complexity hospital, with 356 hospitalized patients (mean age 59.4; ±14.4 years) with COVID-19, from April to August 2020. To verify the association between risk categories and alert scores, the chi-square, Kruskal-Wallis and likelihood ratio tests (p<0.05) were used. patients stratified in the red category had higher NEWS2 and NEWS Age (<0.0001) than the others. Clinical risk categorized by scores was associated with clinical deterioration (p<0.0001), orotracheal intubation (p<0.0001) and death (NEWS - p=0.0098/NEWS Age - p<0.0001). scores ≥ 7 were associated with red/orange risk stratification, clinical deterioration and occurrence of death.

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