| Variable | N | % | |
| Age, Median (Q1 - Q3) | 31 | (23 - 40) | |
| Nationality | Saudi | 243 | 48.6 |
| Yemeni | 94 | 18.8 | |
| Bangladeshi | 43 | 8.6 | |
| Indian | 58 | 11.6 | |
| Pakistani | 14 | 2.8 | |
| Indonesian | 1 | 0.2 | |
| Egyptian | 23 | 4.6 | |
| Sudanese | 11 | 2.2 | |
| Syrian | 3 | 0.6 | |
| Filipino | 10 | 2.0 | |
| Gender | F | 167 | 33.4 |
| M | 333 | 66.6 | |
| HCW | No | 466 | 93.2 |
| Yes | 34 | 6.8 | |
| Smoker | No | 487 | 97.4 |
| Yes | 13 | 2.6 | |
| Diabetes Mellitus | No | 398 | 79.6 |
| Yes | 102 | 20.4 | |
| Hypertension | No | 434 | 86.8 |
| Yes | 66 | 13.2 | |
| Allergies | No | 496 | 99.2 |
| Yes | 4 | 0.8 | |
| Pulmonary Disease | No | 491 | 98.2 |
| Yes | 9 | 1.8 | |
| Pregnancy | No | 493 | 98.6 |
| Yes | 7 | 1.4 | |
| Cardiovascular diseases | No | 498 | 99.6 |
| Yes | 2 | 0.4 | |
| Kidney Disease | No | 499 | 99.8 |
| Yes | 1 | 0.2 | |
| Central Nervous disease | No | 500 | 100 |
| Liver Disease | No | 500 | 100 |
| Tuberculosis | No | 500 | 100 |