TABLE 1.
Study participants’ demographics
| Characteristicsa | Symptomatic (n = 533) | Asymptomatic (n = 289) | Combined (n = 822) | P valueb |
|---|---|---|---|---|
| Median age (±IQR) | 12.1 (9.4–14.5) | 10.9 (8.5–13.7) | 11.8 (9.0–14.3) | 0.002 |
| Female sex, n (%) | 266 (49.9) | 138 (47.8) | 404 (49.1) | 0.555 |
| Comorbidities, n (%) | ||||
| Chronic respiratory disease | 33 (6.2) | 13 (4.5) | 46 (5.6) | |
| Obesity | 5 (2.8) | 10 (3.5) | 25 (3.0) | |
| Diabetes | 1 (0.2) | 3 (1.0) | 4 (0.5) | |
| Hypertension | 2 (0.4) | 0 | 2 (0.2) | |
| Cancer | 0 | 2 (0.7) | 2 (0.2) | |
| Cardiopathy | 1 (0.2) | 0 | 1 (0.1) | |
| Other immunosuppression | 1 (0.2) | 0 | 1 (0.1) | |
| Chronic liver failure | 1 (0.2) | 0 | 1 (0.1) | |
| Result of RT-PCR, n (%) | 0.014 | |||
| Negative | 444 (83.3) | 259 (89.6) | 703 (85.5) | |
| Positive | 89 (16.7) | 30 (10.4) | 119 (14.5) | |
| Mean log RNA IU/ml (± SD) | 5.9 (±1.8) | 4.1 (±1.9) | 5.5 (±2.0) | <0.001 |
a
RT-PCR, reverse transcription-PCR; IQR, interquartile range; SD, standard deviation.
b
Symptomatic versus asymptomatic participants.