Table 1.
| Criteria | Patro (N = 1) | Li (N = 18) | Yikemu (N =78) | Zhang (N = 1) | Izadpanah (N = 106) | Raj (N = 20) | Chang (N = 1) | Deng 2014 (N = 15) | Kollrack (N = 7) | Tan (N = 35) | Diefenbeck (N = 43) | Timmers (N = 30) | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Selection | 1 | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | |||
| 2 | N/A | ∗ | ∗ | N/A | N/A | N/A | ∗ | N/A | ∗ | ||||
| 3 | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ||||
| 4 | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ||||
| Comparability | 1a | ∗ | × | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | |||
| 1b | × | × | ∗ | × | ∗ | ∗ | ∗ | ∗ | ∗ | ||||
| Exposure | 1 | ∗ | ∗ | ∗ | × | ∗ | ∗ | ∗ | ∗ | ∗ | |||
| 2 | ∗ | ∗ | ∗ | ∗ | ∗ | N/A | ∗ | ∗ | ∗ | ||||
| 3 | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ∗ | ||||
| Total | N/A | 7 | 7 | N/A | 9 | 6 | N/A | 8 | 7 | 9 | 8 | 9 |
Patro, Zhang and Chang: Quality assessment using the Newcastle-Ottawa Quality Assessment Scale was not possible for case reports.