Medical history and vaccine status from COVID-19 nasopharyngeal swab individuals attended from 18 March to 8 April 2020 at Polyclinic Piquet Carneiro, Rio de Janeiro
| Total | Detected | Inconclusive | Undetected | P value* | |
| Vaccine status, n (%) | |||||
| Influenza vaccine in 2019 | 750 (73.5) | 273 (73.5) | 61 (75.3) | 416 (73.2) | 0.925 |
| Influenza vaccine in 2020 | 428 (44.8) | 188 (51.6) | 36 (51.4) | 204 (39.1) | 0.001†‡ |
| Medical history, n (%) | 1267 | 410 (32.4) | 94 (7.4) | 763 (60.2) | |
| Arterial hypertension | 245 (19.3) | 94 (22.9) | 15 (15.9) | 136 (17.8) | 0.075 |
| Medicine drugs (in use) | 182 (14.3) | 80 (19.5) | 15 (15.9) | 87 (11.4) | 0.001† |
| Chronic sinusitis | 117 (9.2) | 25 (6.1) | 8 (8.5) | 84 (11.0) | 0.021† |
| Asthma | 104 (8.2) | 26 (6.3) | 10 (10.6) | 68 (8.9) | 0.209 |
| Contraceptives (n=910) | 100 (10.9) | 31 (10.2) | 10 (13.7) | 59 (11.0) | 0.689 |
| Diabetes | 78 (6.1) | 29 (7.0) | 5 (5.3) | 44 (5.7) | 0.634 |
| Tobacco use | 73 (5.7) | 11 (2.6) | 4 (4.2) | 58 (7.6) | 0.002† |
| Obesity | 72 (5.6) | 24 (5.8) | 6 (6.3) | 42 (5.5) | 0.926 |
| Chronic bronchitis | 64 (5.0) | 19 (4.6) | 7 (7.4) | 38 (4.9) | 0.527 |
| Alcohol addiction | 54 (4.2) | 22 (5.3) | 4 (4.2) | 28 (3.6) | 0.391 |
| Hypothyroidism | 46 (3.6) | 13 (3.1) | 6 (6.3) | 27 (3.5) | 0.316 |
| Cardiovascular disease | 25 (1.9) | 6 (1.4) | 2 (2.1) | 17 (2.2) | 0.664 |
| Tuberculosis | 14 (1.1) | 0 | 1 (1.0) | 13 (1.7) | 0.029† |
| Mental disease | 8 (.6) | 5 (1.2) | 0 | 3 (.3) | 0.170 |
| Neoplasia | 6 (.4) | 1 (.2) | 0 | 5 (.6) | 0.487 |
| Liver disease | 6 (.4) | 0 | 0 | 6 (.7) | 0.137 |
| Rheumatoid arthritis | 5 (.3) | 1 (0.2) | 0 | 4 (.5) | 0.626 |
Bold values are p<0.05.
*χ2 test.
†Detected versus undetected.
‡Undetected versus inconclusive (p<0.05).