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Table 5 ROC analysis of predictive value of EWS

From: Early warning score: a dynamic marker of severity and prognosis in patients with Gram-negative bacteraemia and sepsis

Time period

AUC (95 % CI) for 28 days mortality

EWS on day prior to bacteraemia

0.53 (0.42–0.64)

EWS on day of bacteraemia

0.72 (0.64–0.81)

EWS on day 1 after bacteraemia

0.73 (0.64–0.81)

Average EWS 7 days prior to bacteraemia

0.62 (0.53–0.70)

Average EWS 3 days before and 3 days after bacteraemia

0.79 (0.72–0.86)

Average EWS 3 days after bacteraemia

0.82 (0.75–0.89)

Average EWS 7 days after bacteraemia

0.90 (0.85–0.95)

Average EWS 14 days after bacteraemia

0.92 (0.88–0.97)

Average EWS 7 days prior, and 14 days after bacteraemia

0.89 (0.84–0.94)