Number of registered and duplicate reviews in four COVID-19 topic areas by type of systematic review
| Review type | Topic areas | ||||
| Epidemiology | Rehabilitation | Treatment | Transmission | Total | |
| Registered reviews (n) | |||||
| Rapid | 16* | 2 | 21† | 7 | 46 |
| Living | 12 | 3 | 27 | 7 | 49 |
| Full | 417 | 24 | 439 | 79 | 520 |
| Total | 445 | 29 | 487 | 93 | 615 |
| Duplicate reviews (n) | |||||
| Rapid | 1 | 0 | 2 | 0 | 3 |
| Living | 1 | 0 | 6 | 1 | 8 |
| Full | 31 | 0 | 90 | 6 | 127 |
| Total | 33 | 0 | 98 | 7 | 138 |
*Two reviews were rapid, living systematic reviews and are counted in the ‘living’ row.
†One review was a rapid, living systematic review and is counted in the ‘living’ row.