Table 2.
Study Quality Assessment and Level of Evidence
| First author | LOE | Downs and Black Question | Total | ||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | |||
| Jarrett41 | 4 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | - | 0 | 1 | 1 | 0 | 1 | - | - | 1 | 1 | 1 | 0 | 1 | 1 | 1 | - | - | 0 | 0 | - | 17 |
| Lumba-Brown 22 | 2 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 5 | 28 |
| Pomschar 50 | 4 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | 0 | 1 | 1 | 1 | 1 | - | - | 1 | 0 | 1 | 0 | 1 | 0 | 0 | - | - | 0 | 0 | - | 14 |
| Toth 42 | 4 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | - | 0 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 0 | 1 | 1 | 1 | - | - | 1 | 0 | - | 19 |
| Bolouri 38 | 4 | 1 | 1 | 0 | 1 | 2 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | - | - | 0 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | 0 | 1 | - | 19 |
| Donovan51 | 4 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | - | 22 |
| Kane43 | 4 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | - | 1 | 0 | 1 | 1 | 1 | - | - | 1 | 0 | 1 | 1 | 1 | 0 | 1 | - | - | 0 | 1 | - | 16 |
| Saljo 53 | 4 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | - | 1 | 1 | 1 | 1 | 1 | - | - | 1 | 1 | 1 | 1 | 1 | 1 | 1 | - | - | 0 | 1 | - | 21 |
| Lewelt 47 | 4 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | - | 1 | 0 | 1 | 1 | 1 | - | - | 1 | 0 | 0 | 1 | 1 | - | - | - | - | 0 | 1 | - | 12 |