- The general demographic characteristics of the participants and medical history.
| Variables | n | % |
|---|---|---|
| Gender | ||
| Male | 66 | 10.9 |
| Female | 538 | 89.1 |
| Age groups | ||
| 12-15 | 253 | 41.9 |
| 16-17 | 351 | 58.1 |
| Nationality | ||
| Saudi | 455 | 75.3 |
| Non- Saudi | 149 | 24.7 |
| Occupation | ||
| Student | 596 | 98.6 |
| Not student | 8 | 1.4 |
| Health status | ||
| Good health | 558 | 92.4 |
| Health problem | 31 | 5.1 |
| Chronic disease | 15 | 2.5 |
| Diagnosed with COVID-19 prior to receiving the first dose of the COVID-19 vaccine | 110 | 18.2 |
| Not diagnosed with COVID-19 prior to receiving the first dose of the COVID-19 vaccine | 494 | 81.8 |
| Smoker/former smoker | 8 | 1.3 |
| Non-smoker | 596 | 98.7 |
| Receiving antimicrobial | 9 | 1.5 |
| Not receiving antimicrobial | 595 | 98.5 |