Table 1. General characteristics of the included studies.
| First Author | Publication* date (dd-mm) | Continent | Country | Study design | Sample size | Quality score | Mean age, years | Female % | Outcome | Ref. |
|---|---|---|---|---|---|---|---|---|---|---|
| Zhu Z | 22-April | Ningbo | China | Retrospective case study | 127 | 9 | 50.9 (15.3) | 64.6% | Severity | [70] |
| Liu X | 20-April | Wuhan | China | Retrospective case study | 124 | 8 | 56 (12) | 57.1% | Severity | [40] |
| Chen X | 18-April | Wuhan | China | Retrospective case study | 48 | 9 | 64.6 (18.1) | 22.9% | Severity | [26] |
| Chen G | 13-April | Wuhan | China | Retrospective case study | 21 | 8 | 57 (11.1) | 19% | Severity | [24] |
| He R | 12-April | Wuhan | China | Retrospective case study | 204 | 9 | 48.3 (20.7) | 61.3% | Severity | [34] |
| Zhang G | 09-April | Wuhan | China | Retrospective case study | 221 | 9 | 53.5 (20.4) | 51.1% | Severity | [63] |
| Lei S | 04-April | Wuhan | China | Retrospective case study | 34 | 9 | 53.7 (14.8) | 58.8% | ICU | [36] |
| Wang L | 30-March | Wuhan | China | Retrospective case study | 339 | 8 | 69 (7.4) | 51% | Mortality | [53] |
| Guo T | 27-March | Wuhan | China | Retrospective case study | 187 | 8 | 58.5 (14.7) | 51.3% | NA | [33] |
| Zheng C | 27-March | Wuhan | China | Retrospective case study | 55 | 7 | 57.2 (65.3) | 43.6% | Severity | [66] |
| Chen T | 26-March | Wuhan | China | Retrospective case study | 274 | 9 | 58.7 (19.2) | 37.6% | Mortality | [9] |
| Tang X | 26-March | Wuhan | China | Retrospective case study | 73 | 6 | 65.3 (11.1) | 38.4% | NA | [49] |
| Shi S | 25-March | Wuhan | China | Retrospective case study | 416 | 9 | 60 (54.8) | 50.7% | NA | [48] |
| TO K | 23-March | Hong Kong | China | Observational cohort study | 23 | 9 | 57.7 (27.5) | 43.5% | Severity | [50] |
| Zhou Z | 24-March | Chongqing | China | Retrospective case study | 62 | 9 | 47.2 (13.4) | 45.2% | Severity | [69] |
| Chen Z | 24-March | Zhejiang | China | Retrospective case study | 98 | 6 | 43 (17.2) | 53.1% | NA | [27] |
| Wan S | 21-March | Chongqing | China | Retrospective case study | 135 | 9 | 46 (14.1) | 46.7% | Severity | [51] |
| Cheng Y | 20-March | Wuhan | China | Prospective cohort study | 701 | 9 | 61.3 (15.5) | 47.6% | NA | [28] |
| Luo S | 20-March | Wuhan | China | Retrospective case study | 183 | 5 | 53.8 (NA) | 44% | NA | [42] |
| Deng Y | 20-March | Wuhan | China | Retrospective case study | 225 | 8 | 55.4 (11.5) | 44.9% | Mortality | [30] |
| Arentz M | 19-March | Washington | USA | Retrospective case study | 21 | 5 | 68.3 (36.3) | 48% | NA | [21] |
| Chen J | 19-March | Shanghai | China | Retrospective case study | 249 | 5 | 50.3 (20.7) | 49.4% | NA | [25] |
| Cai Q | 18-March | Shenzhen | China | Retrospective case study | 80 | 9 | 47.9 (18.7) | 56.2% | NA | [22] |
| Gao Y | 17-March | Anhui | China | Retrospective case study | 43 | 9 | 43.7 (11.8) | 39.5% | Severity | [32] |
| Qian G | 17-March | Zhejiang | China | Retrospective case study | 91 | 5 | 47.8 (15.2) | 59.3% | Severity | [45] |
| Mo P | 16-March | Wuhan | China | Retrospective case study | 155 | 8 | 54 (17.8) | 44.5% | NA | [43] |
| Wang Z | 16-March | Wuhan | China | Retrospective case study | 69 | 7 | 46.3 (20) | 54% | NA | [54] |
| Lo I | 15-March | Macau | China | Retrospective case study | 10 | 8 | 48.3 (27.4) | 70% | Severity | [41] |
| Cheng Z | 14-March | Shanghai | China | Retrospective case study | 11 | 5 | 50.4 (15.5) | 27.3% | NA | [29] |
| Hsih W | 13-March | Taichung | Taiwan | Retrospective case study | 2 | 5 | 45 (8.9) | 50% | NA | [35] |
| Wu C | 13-March | Wuhan | China | Retrospective case study | 201 | 8 | 51.3 (12.6) | 36.3% | Mortality | [55] |
| Qin C | 12-March | Wuhan | China | Retrospective case study | 452 | 9 | 57.3 (14.8) | 48% | Severity | [46] |
| Zhao D | 12-March | Wuhan | China | Case-control study | 19 | 7 | 43.7 (21.5) | 42.1% | NA | [65] |
| Liu K | 11-March | Hainan | China | Retrospective case study | 18 | 7 | 67.6 (3.3) | 33.3% | NA | [38] |
| Zhou F | 09-March | Wuhan | China | Retrospective case study | 191 | 9 | 56.3 (15.5) | 38% | Mortality | [67] |
| Xiong Y | 07-March | Wuhan | China | Retrospective case study | 42 | 5 | 49.5 (14.1) | 40% | NA | [58] |
| Fan B | 04-March | Singapore | Singapore | Retrospective case study | 67 | 9 | 43.7 (14.1) | 44.8% | ICU | [31] |
| Young B | 03-March | Sengkang | Singapore | Descriptive case series | 18 | 7 | 50.3 (31.1) | 50% | NA | [62] |
| Wu J | 29-February | Jiangsu | China | Retrospective case study | 80 | 7 | 46.1 (15.4) | 51.2% | NA | [56] |
| Li K | 29-February | Chongqing | China | Retrospective case study | 83 | 9 | 45.5 (12.3) | 47% | Severity | [37] |
| Liu W | 28-February | Wuhan | China | Retrospective case study | 78 | 9 | 42.7 (17.8) | 50% | NA | [39] |
| Yang W | 26-February | Zhejiang | China | Retrospective case study | 149 | 6 | 45.1 (13.3) | 45.6% | NA | [60] |
| Wu J | 25-February | Chongqing | China | Retrospective case study | 80 | 6 | 44 (11) | 48% | NA | [57] |
| Shi H | 24-February | Wuhan | China | Retrospective case study | 81 | 7 | 49.5 (11) | 48% | NA | [47] |
| Yang X | 24-February | Wuhan | China | Retrospective case study | 52 | 9 | 59.7 (13.3) | 33% | Mortality | [61] |
| Zhang J | 23-February | Wuhan | China | Retrospective case study | 138 | 9 | 56.3 (45.9) | 49.3% | Severity | [64] |
| Zhou W | 21-February | Wuhan | China | Retrospective case study | 15 | 8 | 61.7 (9.6) | 33.3% | Mortality | [68] |
| Xu X | 19-February | Zhejiang | China | Retrospective case study | 62 | 7 | 41.7 (14.8) | 44% | NA | [59] |
| Pan F | 13-February | Wuhan | China | Retrospective case study | 21 | 6 | 40 (9) | 74% | NA | [44] |
| Chang D | 07-February | Beijing | China | Retrospective case study | 13 | 6 | 38.7 (10.4) | 23.1% | NA | [23] |
| Wang D | 07-February | Wuhan | China | Retrospective case study | 138 | 9 | 55.3 (19.2) | 45.7% | ICU | [52] |
| Huang C | 24-January | Wuhan | China | Prospective cohort study | 41 | 9 | 49.3 (12.6) | 27% | ICU | [1] |
*All articles were published in 2020.
NA: not applicable.