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Table 1 Variables under study (n = 74)

From: Development of machine learning models to predict RT-PCR results for severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in patients with influenza-like symptoms using only basic clinical data

Demographic Data
 Age (years)
 Sex (M; F)
Medical History (yes; no)
 Atrial fibrillation
 Autoimmune/inflammatory disease
 Chronic Interstitial lung disease
 Chronic kidney disease
 Chronic liver disease
 Chronic obstructive pulmonary disease (COPD)
 Diabetes mellitus
 Hematologic malignancy
 Human immunodeficiency virus
 Ischemic cardiomyopathy
 Smoking (active)
 Solid organ tumor
Medication history (yes; no)
 5-alpha-reductase inhibitors
 Angiotensin converting enzyme inhibitor
 Anti-arrhythmic drugs
 Antibiotics before Emergency Department
 Anticoagulant therapy
 Anti-epileptic therapy
 Anti-platelets therapy
 Beta blocker
 Calcium channel antagonist
 Drugs for psychiatric disorders
 Hydroxymethylglutaryl-CoA reductase inhibitors
 Immunosuppressant drugs
Reported Signs and Symptoms (yes; no)
 Chest pain
 Gastrointestinal symptoms
 Sore throat
Vital signs, ECG and Chest X-ray findings
 Glasgow coma scale, score
 Body temperature, Celsius
 Systolic blood pressure, mmHg
 Diastolic blood pressure, mmHg
 Heart rate, beats per min
 Sinus rhythm ̶ no. (%)
 Normal ST segment ̶ no. (%)
 Respiratory rate, breaths per min
 Oxygen supplementation ̶ no. (%)
 Non-Invasive Ventilation ̶ no. (%)
 Chest X-rays opacity ̶ no. (%)
 Chest X-rays pleural effusion ̶ no. (%)
Laboratory findings
 Total white blood cell count, 103/μL
 Neutrophils, %
 Lymphocytes, %
 Monocytes, %
 Eosinophils, %
 Basophils, %
 Total red blood cells count, 106/μL
 Haematocrit, %
 Haemoglobin, g/dL
 Mean corpuscular haemoglobin concentration, g/dL
 Mean corpuscular haemoglobin, pg
 Mean red blood cell volume, μm3
 Red blood cells distribution width,%
 Platelets, 103/μL
 Glycaemia, mg/dL
 Creatinine, mg/dL
 Urea, mg/dL
 Sodium, mEq/L
 Total bilirubin, mg/dL
 C-reactive protein, mg/dL
Swab test for SARS-COV-2 (TARGET)
 Negative (yes; no)
 Positive (yes; no)
  1. Medical and medication history and reported sign and symptoms were collected by physicians in the Emergency Room. Clinical findings refer to data gathered in the Emergency Room at hospital admission