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Table 3 WHO 2009 criteria for severe dengue

From: Confirmed adult dengue deaths in Singapore: 5-year multi-center retrospective study

Criteria No.(%) of patients
Severe dengue 28 (100.0)
   Severe plasma leakage (hematocrit change ≥20%, fluid accumulation, hypoproteinemia) 28 (100.0)
   Severe plasma leakage (hematocrit change ≥20%, fluid accumulation) 26 (92.9)
   Shock:  
Shock (tachycardia or narrow pulse pressure or hypotension) 28 (100.0)
Shock (narrow pulse pressure or hypotension) 26 (92.9)
Tachycardia >100/minute 26 (92.9)
Narrow pulse pressure <20 mmHg 10 (35.7)
Hypotension <90 mmHg 21 (75.0)
Fluid accumulation with respiratory distress 9 (32.1)
   Significant bleeding: 10 (35.7)
Gastrointestinal tract 3 (10.7)
Menorrhagia 0 (0.0)
Transfusion of packed red cells or whole blood 8 (28.6)
   Impaired consciousness: 16 (57.1)
Coma 1 (3.6)
Drowsiness 13 (46.4)
Confusion 4 (14.3)
   Severe gastrointestinal involvement: 3 (10.7)
Persistent vomiting ≥2 days 2 (7.1)
Jaundice 3 (10.7)
   Severe organ involvement: 24 (85.7)
ALT or AST ≥1000 units/L 15 (53.6)
Impaired consciousness 16 (57.1)
Serum creatinine >2x upper limit normal 20 (71.4)
Myocarditis 0 (0.0)
Encephalitis 0 (0.0)
  1. ALT = alanine transaminase, AST = aspartate transaminase, WHO = World Health Organization