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Table 3 Complications of influenza and dengue infections

From: Use of simple clinical and laboratory predictors to differentiate influenza from dengue and other febrile illnesses in the emergency room

Complication a Influenza (n = 526) Dengue (n = 148) P
Pneumonia 27b (5.1) 1 (0.6) 0.016
ARDS 5c (0.9) 0 0.234
Meningoencephalitis 6d (1.1) 0 0.192
Intracranial bleeding 2d (0.4) 0 0.452
Gastrointestinal bleeding 2d (0.4) 14 (9.5) <0.001
Myocarditis 1d (0.2) 0 0.596
Acute hepatitis (ALT >1,000 U/L) 2d (0.4) 0 0.452
  1. Data are number (%) of patients. ARDS = acute respiratory distress syndrome; ALT = alanine aminotransferase.
  2. aAn individual patient might have more than one complication.
  3. bOf 27 influenza patients with pneumonia, 15 cases were 2009 pandemic H1N1 and 12 cases were H3N2.
  4. cOf 5 influenza patients with ARDS, 4 cases were 2009 pandemic H1N1 and 1 case was H3N2.
  5. dPatient(s) with 2009 pandemic H1N1 infection.