Table 1.
Characteristics of SARS-CoV-2 positive participants.
| Characteristic | N | (%) |
|---|---|---|
| Total numbers | 6,919 | (100) |
| Sex | ||
| Female | 4,637 | (67.0) |
| Male | 2,282 | (33.0) |
| Age in years | ||
| 18-24 | 1,124 | (16.2) |
| 25-29 | 1,142 | (16.5) |
| 30-34 | 1,092 | (15.8) |
| 35-39 | 907 | (13.1) |
| 50-54 | 724 | (10.5) |
| 40-44 | 716 | (10.3) |
| 45-49 | 682 | (9.9) |
| 55-61 | 532 | (7.7) |
| Body Mass Index in kg/m² | ||
| <18.5 | 104 | (1.5) |
| 18.5 to < 25 | 3,791 | (54.8) |
| 25 to <30 | 1,963 | (28.4) |
| 30 to <35 | 749 | (10.8) |
| 35 to <40 | 222 | (3.2) |
| ≥40 | 90 | (1.3) |
| Diabetes mellitus | ||
| No | 6,785 | (98.1) |
| Yes | 134 | (1.9) |
| Arterial hypertension | ||
| No | 6,345 | (91.7) |
| Yes | 574 | (8.3) |
| Smoking status | ||
| Never | 4,362 | (63.0) |
| Past, not in 2019 | 1,560 | (22.5) |
| Active in 2019 | 997 | (14.4) |
| Month of test | ||
| January/February | 27 | (0.4) |
| March | 3,075 | (44.4) |
| April | 2,147 | (31.0) |
| May | 771 | (11.1) |
| June | 484 | (7.0) |
| July | 415 | (6.0) |
| COVID-19 phenotype* | ||
| Symptomatic infection | 6,218 | (89.9) |
| Severe respiratory symptoms | 1,821 | (26.3) |
| Respiratory hospitalization | 266 | (3.8) |
* The three phenotypes are nested. Patients with respiratory hospitalization are a subset of participants with severe respiratory symptoms and participants with severe respiratory symptoms represent a subset of participants with symptomatic infection.