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Table 1 Variables included in our study

From: Cluster analysis for identifying sub-groups and selecting potential discriminatory variables in human encephalitis

Symptom
Variables
Exposure
Variables
Diagnostic
Variables
Demograhic
Variables
• Lethargy • Animal contact • Measurements from Cerebrospinal fluid (CSF) • Gender
• Personality/behavioural change • Tick bite    - White blood cell count • Age
• Seizures • Mosquito bite    - Protein • Region
• Stiff neck • Insect bite    - Glucose  
• Headache • Immunization • Magnetic resonance Imaging (MRI)  
• Irritability • Recent infection • Electroencephalography (EEG)  
• Fever • Travel abroad • Computed Tomography (CT) scans  
• Focal neurological findings • Travel within UK • other clinical variables  
• Coma • Raw fish    - Length of stay in hospital  
• Neurological signs • Untreated water    - Duration of illness  
• Gastrointestinal • Head trauma   
• Respiratory • Sick person contact   
• Confusion • Water exposure   
• Photophobia    
• Rash    
• Urinary