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Clinical Characteristics of Study Participants
| Characteristic | Participants (N= 272), No (%) |
|---|---|
| Age, y ±SD | 44 ± 10 |
| Sex, male | 80 (29) |
| Body mass index ±SD | 24 ± 1.0 |
| Previous allergies | 84 (31) |
| Current smoker | 45 (16) |
| Anxiety | 25 (9) |
| Arterial hypertension | 20 (7) |
| Asthma | 16 (6) |
| Active steroid or chemotherapy | 5 (2) |
| Diabetes mellitus | 4 (1) |
| Chronic kidney failure | 1 (1) |
| Previous COVID-19 | 14 (5) |
| Within 3 mo | 5 |
| >6 mo | 9 |
