Table 1.
Characteristics of included studies.
| Author, year of publication | Source of data | Country | Date of data collection | Mean/median age (years) | Males, % | Hospital stay/ follow-up (days) | No. of patients | AKI cases | NOS score |
|---|---|---|---|---|---|---|---|---|---|
| Aggarwal, 2020 | UnityPoint Clinic | USA | March–April 2020 | 67.0 | 75 | 2.0 | 16 | 11 | 4 |
| Arentz, 2020 | Evergreen Hospital in Kirkland, Washington | USA | Feb–March 2020 | 70.0 | 52 | 5.2 | 21 | 4 | 4 |
| Cao, 2020 | Zhongnan Hospital of Wuhan University | China | Jan–Feb 2020 | 54.0 | 52 | 11.0 | 102 | 20 | 4 |
| Chen, 2020 | Tongji Hospital in Wuhan | China | Jan–Feb 2020 | 62.0 | 62 | 13.0 | 274 | 29 | 4 |
| Cheng, 2020 | Tertiary teaching hospital | China | NR | 63.0 | 52.4 | 10.0 | 701 | 36 | 6 |
| Guan, 2020 | National Health Commission | China | Dec–Jan 2020 | 47.0 | 58.1 | 12.0 | 1099 | 6 | 4 |
| Guo, 2020 | Seventh Hospital of Wuhan City | China | Jan–Feb 2020 | 58.5 | 48.7 | 16.3 | 187 | 18 | 5 |
| Huang, 2020 | Jin Yintan Hospital, Wuhan | China | Dec–Jan 2020 | 49.0 | 73 | 7.0 | 41 | 3 | 4 |
| Liu, 2020 | Shenzhen Third People’s hospital | China | Dec–Jan 2020 | NR | 66.7 | 8.6 | 12 | 2 | 4 |
| Phipps, 2020 | New York-Presbyterian network | USA | March–April 2020 | 65.0 | 57.0 | 6.0 | 2,273 | NR | 6 |
| Price-Haywood, 2020 (W) | Ochsner Health in Louisiana | USA | March–April 2020 | 55.5 | 45.7 | 7.0 | 1,030 | 34 | 6 |
| Price-Haywood, 2020 (B) | Ochsner Health in Louisiana | USA | March–April 2020 | 53.6 | 37.7 | 6.0 | 2,451 | 163 | 6 |
| Richardson, 2020 | 12 Hospitals in New York-Northwell Health system | USA | March–April 2020 | 63.0 | 60.3 | 4.5 | 5700 | 523 | 4 |
| Ruan, 2020 | Jin Yin-tan Hospital and Tongji Hospital | China | NR | 57.7 | 68 | 10.1 | 150 | 23 | 4 |
| Shi, 2020 | Renmin Hospital of Wuhan University | China | Jan–Feb 2020 | 64.0 | 49.3 | NR | 416 | 8 | 6 |
| Wang, 2020 | Zhongnan Hospital of Wuhan University | China | Jan, 2020 | 56.0 | 54.3 | 7.0 | 138 | 5 | 4 |
| Wang, 2020b | Renmin Hospital of Wuhan University | China | Jan–Feb 2020 | 71.0 | 49 | 28.0 | 339 | 27 | 4 |
| Wang, 2020c | Zhongnan Hospital of Wuhan University and Xishui People’s Hospital | China | Up to Feb, 2020 | 51.0 | 53.3 | 11.0 | 107 | 14 | 5 |
| Yang, 2020 | Wuhan Jin Yin-tan hospital | China | Dec–Jan 2020 | 59.7 | 67 | 10.0 | 52 | 15 | 4 |
| Zhao, 2020 | Jingzhou Central Hospital | China | Jan–Feb 2020 | 46.0 | 53.8 | NR | 91 | 5 | 4 |
| Zhao, 2020b | Shouyi and East districts of Renmin Hospital of Wuhan University | China | Jan–Feb 2020 | 61.0 | 46.6 | 7.0 | 1,000 | 29 | 4 |
| Zhou, 2020 | Jinyintan Hospital & Wuhan Pulmonary Hospital | China | Dec–Jan 2020 | 56.0 | 62 | 11.0 | 191 | 28 | 5 |
AKI: acute kidney injury; NOS: Newcastle-Ottawa Scale; NR: not reported.