Table 1.
Characteristics of the included studies on pediatric COVID-19.
| Author | Study type | Region | Year | N | Age | Sex (Male) | Quality score |
| CDC | Cross-sectional | The U.S.A | 2020 | 291 | Range: 0–17 yr | NA | 8∗ |
| Chen et al | Cross-sectional | China | 2020 | 12 | median: 14.5 yr | 6 | 8∗ |
| Dong et al | Cross-sectional | China | 2020 | 728 | Range: 2–13 yr | 418 | 8∗ |
| Du et al | Cross-sectional | China | 2020 | 14 | median: 6.2 yr | 6 | 7∗ |
| Han et al | Cross-sectional | China | 2020 | 7 | Range: 2–13 yr | 4 | 7∗ |
| Liang et al | Cross-sectional | China | 2020 | 9 | Range: 1–9 yr | 3 | 8∗ |
| Liu et al | Cross-sectional | China | 2020 | 4 | Range: 1–9 yr | 2 | 8∗ |
| Qiu et al | Cross-sectional | China | 2020 | 36 | mean: 8 3 yr | 23 | 9∗ |
| Wang et al | Cross-sectional | China | 2020 | 31 | Range: 1–17 yr | 15 | 8∗ |
| Xia et al | Cross-sectional | China | 2020 | 20 | median: 2 yr | 13 | 9∗ |
| Xie et al | Cross-sectional | China | 2020 | 13 | Range: 10–18 yr | 7 | 9∗ |
| Zheng et al | Cross-sectional | China | 2020 | 25 | Range: 1–14 yr | 14 | 9∗ |
| Zhu et al | Cross-sectional | China | 2020 | 10 | Range: 1–17 yr | 5 | 9∗ |
| Ma et al | Cross-sectional | China | 2020 | 50 | Range: 0–17 yr | 28 | 9∗ |
| Korkmaz et al | Cross-sectional | Turkey | 2020 | 81 | median: 9.5 yr | 48 | 8∗ |
| Wu et al | Cross-sectional | China | 2020 | 74 | median: 6 yr | 44 | 9∗ |
| Du et al | Cross-sectional | China | 2020 | 182 | median: 6 years | 120 | 9∗ |
| Parri et al | Cross-sectional | Italy | 2020 | 130 | median: 6 yr | 73 | 8∗ |
| Bo Li et al | Case series | China | 2020 | 22 | mean: 8 yr | 12 | 5/9† |
| Cai et al | Case series | China | 2020 | 10 | Range: 1–11 yr | 4 | 5/9† |
| Feng et al | Case series | China | 2020 | 15 | Range: 4–14 yr | 5 | 6/9† |
| Li et al | Case series | China | 2020 | 5 | Range: 1–6 yr | 4 | 7/9† |
| Lu et al | Case series | China | 2020 | 171 | mean: 6.7 yrs | 104 | 7/9† |
| Shen et al | Case series | China | 2020 | 9 | Range: 1–12 yr | 3 | 6/9† |
| Tan et al | Case series | China | 2020 | 10 | Range: 1–11 yr | 3 | 7/9† |
| Xu et al | Case series | China | 2020 | 10 | Range: 1–17 yr | 6 | 8/9† |
| Zhou et al | Case series | China | 2020 | 9 | Range: 1–3 yr | 4 | 7/9† |
| Steinberger et al | Case series | China | 2020 | 30 | median: 10 years | 15 | 7/9† |
| Wu et al | Case series | China | 2020 | 157 | median: 7 yr | 60 | 7/9† |
| Ma et al | Cohort study | China | 2020 | 216 | median: 7.25 yr | 134 | 9∗ |
| Han et al | Cohort study | Korea | 2020 | 91 | median: 11 yr | 53 | 9∗ |
| Kilani et al | Cohort study | Jordan | 2020 | 61 | median: 6 yr | 37 | 7∗ |
| Pablo et al | Case series | Worldwide | 2020 | 91 | median: 6.1 yr | 49 | 6/9† |
| Afshin et al | Case series | Iran | 2020 | 27 | mean: 4.7 ± 4.16 yr | 10 | 5/9† |
| Fakiri et al | Case series | Morocco | 2020 | 74 | median: 7 yr | 34 | 5/9† |
| Danah et al | Cohort study | Kuwait | 2020 | 134 | median: 8.8 yr | 74 | 7∗ |
| Mamishi et al | Case series | Iran | 2020 | 24 | median: 6 yr | 11 | 5/9† |