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Table 4 Logistic regression model of independent variables associated with COVID-19 mortality

From: Sociodemographic determinants and clinical risk factors associated with COVID-19 severity: a cross-sectional analysis of over 200,000 patients in Tehran, Iran

Variables aOR 95% Confidence Interval P value
Lower Upper
Age (years)
 0–19 1    
 20–39 0.74 0.635 0.884 0.001
 40–59 1.48 1.275 1.720 < 0.001
 60 and over 3.70 3.197 4.283 < 0.001
Sex
 Women 1    
 Men 1.23 1.186 1.281 < 0.001
Residing area
 West 1    
 Central, South 1.52 1.444 1.615 < 0.001
 North, East 1.42 1.367 1.491 < 0.001
History of smoking 0.76 0.659 0.893 0.001
History of opioids 1.09 0.930 1.289 0.27
History of exposure to SARS-CoV-2 0.96 0.923 0.999 0.04
Positive chest CT findings 2.29 2.060 2.565 < 0.001
Underlying diseases
 Diabetes 1.04 0.984 1.102 0.16
 Hypertension 0.97 0.923 1.029 0.34
 CVD 1.01 0.955 1.071 0.69
 Cancer 1.71 1.539 1.905 < 0.001
 Asthma 0.76 0.649 0.904 0.002
 Chronic respiratory diseases 1.15 1.022 1.315 0.02
 Chronic liver diseases 1.41 1.112 1.803 0.005
 Chronic kidney diseases 1.75 1.588 1.938 < 0.001
 Chronic neurological diseases 1.16 1.001 1.364 0.04
 Chronic immune deficiency diseases 1.18 0.828 1.699 0.35
 Chronic haematological diseases 1.23 0.976 1.570 0.07
 HIV/AIDS 1.77 1.053 2.973 0.03
Symptoms
 Fever 1.09 1.099 1.143 < 0.001
 Cough 0.83 0.801 0.868 < 0.001
 Muscle ache 0.87 0.845 0.924 < 0.001
 Difficulty breathing 1.63 1.568 1.701 < 0.001
 SpO2 < 93% 2.67 2.547 2.801 < 0.001
 Chest pain 1.08 0.970 1.204 0.16
 Loss of smell 0.90 0.760 1.065 0.21
 Loss of taste 0.91 0.738 1.124 0.38
 Loss of appetite 1.05 0.969 1.137 0.23
 Nausea 0.85 0.775 0.934 0.001
 Diarrhea 0.89 0.790 1.012 0.07
 Headache 0.78 0.711 0.861 < 0.001
 Vertigo 0.99 0.864 1.136 0.89
 Impaired consciousness 3.73 3.508 3.979 < 0.001
 Seizure 0.97 0.699 1.366 0.89
 Paresis 1.19 0.949 1.491 0.13
 Paraplegia 0.74 0.497 1.123 0.16
 Skin lesions 0.85 0.450 1.619 0.62
Constant 0.006    < 0.001