TABLE 3.
Data collection type
| Authors | Year published | Sample size (n) | Data collection | Level of evidence |
|---|---|---|---|---|
| Cherry et al. | 2006 | 396 | Retrospective observational | Level 2b |
| Choi and Hwang | 2008 | 255 | Retrospective and prospective observational | Level 2b |
| Magnotti et al. | 2011 | 591 | Prospective observational | Level 1b |
| Giancarelli et al. | 2016 | 156 | Retrospective observational | Level 2b |
| Vasudeva et al. | 2020 | 226 | Retrospective observational | Level 2b |
| Connor et al. | 2021 | 101 | Retrospective observational | Level 2b |
| Chanthima et al. | 2021 | 346 | Retrospective observational | Level 2b |