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Table 1 Scale for grading the disease severity in patients with HFRS

From: Serum levels of inflammatory and regulatory cytokines in patients with hemorrhagic fever with renal syndrome

Signs and symptoms   Score
1. SHOCK, HYPOTENSION a   
Shock   10
Hypotension, systolic blood pressure < 90 mm Hg   5
Tachycardia, heart rate > 120/min   2
2. HAEMORRHAGES a   
Massive: blood transfusion needed   5
Internal (melena, hematemesis, hemoptysis, intracranial)   3
Epistaxis   2
Petechiae, conjuctival injection, enanthema   1
3. GENERAL SYMPTOMS   
Body temperature > 40°C   2
Seizure   2
Blurred vision   1
Vomiting and diarrhea   1
Anuria/oliguria   1
Dialysis requirement   1
4. Laboratory parameters   
Serum urea and/or creatinine > 5-times the normal value 5
  > 4-times the normal value 4
  > 3-times the normal value 3
  > 2-times the normal value 2
Trombociti < 20 × 109/L 2
  < 50 × 109/L 1
AST, ALT > 5-times the normal value 2
  3-4-times the normal value 1
Lung X-ray pneumonitis 2
  pleural effusion 1
  1. a In group 1 and 2, only the signs/symptoms with the highest score are considered