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Table 2 Mortality (1-day and 30-day) at high, medium and low risk classes categorized according to the prehospital National Early Warning Score (NEWS)

From: Does the prehospital National Early Warning Score predict the short-term mortality of unselected emergency patients?

   NEWS class
  High Medium Low
Missions, n 718 1832 9876
1-day mortality Number of deaths 153 17 21
Mortality, % (95%CI) 21.3 (18.3 to 24.5) 0.9 (0.5 to 1.5) 0.2 (0.1 to 0.3)
RR (95%CI) 101.5 (69.0 to 144.1) 4.4 (2.3 to 8.2) 1.0 (ref.)
p < 0.001 < 0.001  
30-day mortality Number of deaths 238 115 208
Mortality, % (95%CI) 33.1 (29.6 to 36.8) 6.3 (5.2 to 7.4) 2.1 (1.8 to 2.4)
RR (95%CI) 16.0 (13.6 to 18.0) 3.0 (2.4 to 3.7) 1.0 (ref.)
p < 0.001 < 0.001  
  1. RR relative risk, 95% CI 95% confidence interval
  2. There were 191 early 1-day deaths and 561 2–30 day deaths
  3. Wald’s test was used for statistical comparison with reference level