Table 2.
Frequency of COVID-19 self-reported symptoms among children by RT-qPCR positivity for SARS-CoV-2, Tehran, autumn 2020 to spring 2021 (n = 1517).
| Symptoms * | RT-qPCR Positive (n = 135) |
% | RT-qPCR Negative (n = 1382) |
% |
|---|---|---|---|---|
| Sore throat | 33 | 24.4 | 92 | 6.7 |
| Fatigue | 32 | 23.7 | 85 | 6.2 |
| Fever > 38 °C | 31 | 22.9 | 117 | 8.5 |
| Cough | 30 | 22.2 | 100 | 7.2 |
| Rhinorrhea | 20 | 14.8 | 103 | 7.4 |
| Chills | 19 | 14 | 47 | 3.4 |
| Stomach ache | 18 | 13.3 | 120 | 8.7 |
| Headache | 17 | 12.6 | 66 | 4.7 |
| Nausea/vomiting | 16 | 11.8 | 65 | 4.7 |
| Diarrhea | 14 | 10.3 | 63 | 4.5 |
| Wheeze | 10 | 6.6 | 31 | 2.2 |
| Dyspnea | 8 | 5.9 | 14 | 1 |
| Myalgia | 7 | 5.2 | 17 | 1.2 |
| Chest pain | 4 | 2.9 | 15 | 1.1 |
| Other respiratory | 3 | 2.2 | 7 | 0.5 |
| Change in smell and/or taste | 1 | 0.7 | 8 | 0.57 |
* All symptoms, except chills, were recorded with ≥10% missing data in the questionnaire. The exact number of missing values can be found in Table S2 (Supplementary Material). RT-qPCR—quantitative reverse transcription real-time PCR.