Table 1 Information on the studies included meta-analysis
Author | Country | Case number | Age, years | Gender | Incubation period, days | References |
|---|---|---|---|---|---|---|
Ai et al | China | 44 | – | – | 8.09 (SD: 4.99) | [40] |
An et al | China | 27 | 44 | 11M:16F | 9.1 (R: 3–28) | [41] |
Chen et al | China | 19 | – | – | 5 (IQR: 3.3–10) | [42] |
Chen et al | China | 18 | 44.5 | 10M:8F | 8 (IQR: 4–12) | [43] |
Dai et al | China | 180 | NA | NA | 4.95 (SD: 2.46) | [44] |
Duan et al | China | 42 | 51.48 | 15M:27F | 7 (IQR: 2–13.5) | [45] |
Fang et al | China | 305 | 57 | 146M:159F | 6 (R: 1–15) | [46] |
Fu et al | China | 24 | 38.92 | 14M:10F | 5 (R: 0–35) | [47] |
Han et al | China | 226 | 44.4 | 97M:129F | 7 (IQR: 5–11) | [48] |
Jia et al | China | 44 | 46 | 15M: 29F | 6.28 (R: 1–14) | [49] |
Jiang et al | China | 43 | 50 | 15M:28F | 5.95 (R: 2–13) | [50] |
Jiang et al | China | 17 | – | 6M:11F | 7 (R: 1–14) | [51] |
Jin et al. 1 | China | 21a | NA | NA | 4 (IQR: 3–7) | [52] |
|  |  | 195b | NA | NA | 5 (IQR: 3–8) |  |
Lai et al | China | 330 | 47 | 161M:169F | 7 (IQR:4–12) | [53] |
Lai et al | China | 40 | NA | NA | 4.2 (IQR: 4.0–4.5) | [54] |
Li et al | China | 47 | 35 | 23M:24F | 9 (R: 1–20) | [55] |
Li et al | China | 30 | 32.57 | 30F | 7.07 (SD: 4.08) | [56] |
Li et al | China | 86 | – | – | 6.3 (R: 1–12) | [57] |
Li et al | China | 51 | – | – | 5 (R: 2–10) | [58] |
Liu et al | China | 201 | 45.2 | 103M:98F | 6.3 (R: 1–20) | [59] |
Liu et al | China | 87 | NA | NA | 10.4 (R:2–25) | [60] |
Liu et al | China | 41 | 42 | 19M:22F | 8.8 (SD: 4.8) | [61] |
Liu et al | China | 44 | – | – | 8 (R: 1–19) | [62] |
Liu et al | China | 70 | 40 | 1.13 | 6 (R: 1–14) | [63] |
Lu et al | China | 100 | 37.13 | 52M:48F | 11.14 (SD: 6.05) | [64] |
Luo et al | China | 24 | 35.3 | 14M:10F | 8.5 (R: 1–14) | [65] |
Ng et al | China | 158 | 45 | 84M:74F | 5.5 (SD: 3.26) | [66] |
Ping et al | China | 90 | – | – | 6.05 (IQR: 3.81–9.59) | [67] |
She et al | China | 991 | 43.96 | 1.16 | 5.2 (SD: 1.9) | [68] |
Shen et al | China | 10 | 60.5 | 6M:4F | 4.5 (IQR: 2–6.5) | [69] |
Tian et al | China | 262 | 47.5 | 127M: 135F | 6.7 (SD: 5.2) | [70] |
Wang et al | China | 483 | NA | NA | 7 (IQR: 4–11) | [71] |
Wang et al | China | 275 | 49 | 128M: 147F | 6 (IQR: 3–9) | [72] |
Wang et al | China | 14 | NA | NA | 3 (IQR:2–5.25) | [73] |
Wang et al | China | 12 | – | – | 7.5 (IQR: 6–13.5) | [74] |
Wu et al | China | 41 | 38 | 19M:22F | 6.05 (SD: 3.84) | [75] |
Xia et al | China | 10 | 56.5 | 6M: 4F | 7 (SD: 2.59) | [76] |
Yu et al | China | 132 | NA | 172M: 161F | 7.2 (IQR: 6.4–7.9) | [77] |
Yuan et al | China | 41 | 41 | 25M:16F | 6.5 (IQR: 4.0–11.5) | [78] |
Zhao et al | China | 136 | 49 | NA | 6 (IQR: 4–11) | [79] |
Zhang et al | China | 353 | – | – | 5.9 (IQR: 3.8–8.6) | [80] |
Zhong et al | China | 48 | 41 | 31M: 17F | 6.86 (SD: 3.57) | [81] |
Zhu et al | China | 245 | – | – | 6 (R: 1–23) | [82] |
Chun et al | Korea | 35 | NA | NA | 2.87 (SD: 1.64) | [3] |
Viego et al | Argentina | 15 | NA | NA | 7.86 (SD: 6.38) | [24] |
Wong et al | Brunei | 135 | 36 | 82/53F | 5 (R: 1–11) | [25] |
Pongpirul et al | Thailand | 83 | NA | NA | 5 (IQR: 3–8) | [26] |
Calba et al | France | 10 | NA | NA | 4.5 (IQR: 2–7) | [27] |
Laval et al | France | 23 | – | – | 4 (R: 1–13) | [28] |
Bui et al | Vietnam | 19 | NA | NA | 6.4 (SD: 5.8) | [29] |
Böhm et al | Germany | 256 | NA | NA | 4.6 (SD: 3.0) | [30] |
Patrikar et al | India | 268 | 36.45 | 162M:106F | 6.93 (SD: 5.87) | [32] |
Tan et al | Singapore | 164 | 44.2 | 77M:87F | 5 (SD: 2.3) | [34] |