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Table 6 Risk groups within the derivation and validation groups

From: Development and validation of new poisoning mortality score system for patients with acute poisoning at the emergency department

Risk group

New-PMSa

Observed mortality (%)

Derivation cohort

(n = 34,352)

Validation cohort

(n = 8216)

Very low

0–27

5/11,776 (0.04)

0/3038 (0.00)

Low

28–40

40/12,979 (0.31)

9/3266 (0.28)

Intermediate

41–55

170/6717 (2.53)

24/1322 (1.82)

High

≥ 56

694/2880 (24.10)

102/548 (18.61)

  1. PMS poisoning mortality score
  2. aSum of scores for each variable as shown in Table 4
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Critical Care

ISSN: 1364-8535