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Table 4 Prognostic accuracy of HEWS and NEWS2 for in-hospital mortality—patients with suspected infection (n = 1708)

From: Prognostic accuracy of the Hamilton Early Warning Score (HEWS) and the National Early Warning Score 2 (NEWS2) among hospitalized patients assessed by a rapid response team

Characteristics

HEWS ≥ 3

(n = 1176, 68.9%)

HEWS ≥ 5

(n = 799, 46.8%)

NEWS2 ≥ 5

(n = 1075, 62.9%)

Sensitivity (95% CI)

96.0 (94.0–97.4)

83.2 (79.8–86.1)

87.7 (84.7–90.3)

Specificity (95% CI)

44.7 (41.8–47.7)

71.4 (68.7–74.1)

49.1 (46.2–52.1)

Positive predictive value (95% CI)

46.5 (45.2–47.9)

59.3 (56.9–61.7)

45.7 (44.1–47.3)

Negative predictive value (95% CI)

61.8 (59.5–64.1)

89.4 (87.6–91.1)

89.1 (86.7–91.1)

Positive likelihood ratio (95% CI)

1.74 (1.64–1.83)

2.91 (2.64–3.21)

1.72 (1.62–1.84)

Negative likelihood ratio (95% CI)

0.09 (0.06–0.14)

0.24 (0.20–0.28)

0.25 (0.20–0.32)

Number needed to examine (95% CI)

2.15 (2.09–2.21)

1.69 (1.62–1.76)

2.19 (2.11–2.27)

  1. CI confidence interval; HEWS Hamilton Early Warning Score, NEWS2 National Early Warning Score 2
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Critical Care

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