Table 2.
Full and reduced backward stepwise logistic regression analysis model assessing the impact of risk factors on the severity of COVID-19.
|
Variable |
OR |
-95% CI |
+ 95% CI |
p |
|---|---|---|---|---|
| Full logistic regression analysis model | ||||
| Age | 0.991 | 0.952 | 1.033 | 0.699 |
| Any sleep disorders | 0.896 | 0.595 | 1.348 | 0.599 |
| Smoking | 0.485 | 0.233 | 1.011 | 0.054 |
| Stress in the last 4 weeks before COVID-19 | 1.851 | 1.055 | 3.248 | 0.032 |
| No regular activity 3 months before COVID-19 | 3.571 | 2.410 | 5.291 | < 0.001 |
| Female | 1.103 | 0.747 | 1.629 | 0.619 |
| BMI | 0.966 | 0.931 | 1.022 | 0.070 |
| Diabetes Mellitus | 1.223 | 0.759 | 1.987 | 0.403 |
| Coronary Artery Disease | 2.151 | 1.247 | 3.710 | 0.005 |
| Heart Failure | 0.771 | 0.278 | 2.130 | 0.615 |
| Hypertension | 0.920 | 0.576 | 1.471 | 0.728 |
| COPD | 1.128 | 0.489 | 2.598 | 0.777 |
| Asthma | 1.403 | 0.754 | 2.612 | 0.284 |
| COVID-19 Vaccination | 0.636 | 0.305 | 1.327 | 0.228 |
| III pandemic wave | 1.920 | 1.223 | 3.014 | 0.004 |
| IV pandemic wave | 1.395 | 0.851 | 2.377 | 0.221 |
| V pandemic wave | 1.084 | 0.569 | 2.065 | 0.805 |
| Reduced backward stepwise logistic regression analysis model | ||||
| No regular activity 3 months before COVID | 3.441 | 2.349 | 5.041 | < 0.001 |
| Coronary Artery Disease | 2.283 | 1.348 | 3.867 | 0.002 |
| Stress in the last 4 weeks before COVID-19 | 1.858 | 1.075 | 3.212 | 0.026 |
| III pandemic wave | 1.849 | 1.193 | 3.865 | 0.002 |
OR – Odds ratio; 95% CI – 95% Confidence interval; COPD – chronic obstructive pulmonary disease; BMI – Body Mass Index. Statistically significant values are in bold with the significance level set at p < 0.05.