Table 1.
Basic features of the eligible studies.
| Name of the first author | Country | Published year | Enrollment | Study design | Blind method |
|---|---|---|---|---|---|
| Araujo (16) | Brazil | 2017 | consecutive | prospective | blind |
| Chen (17) | China | 2019 | consecutive | retrospective | blind |
| Jeong (18) | Korea | 2020 | consecutive | prospective | unreported |
| Joyeux (19) | France | 2016 | consecutive | retrospective | unreported |
| Poonyakanok (11) | Thailand | 2021 | consecutive | prospective | unreported |
| Sandal (20) | Turkey | 2018 | unreported | retrospective | unreported |
| Sayasneh (21) | England | 2016 | consecutive | prospective | blind |
| Tug (22) | Turkey | 2020 | unreported | retrospective | unreported |
| Van Calster (9) | Belgium | 2014 | consecutive | prospective | blind |
| Viora (23) | Italy | 2020 | consecutive | prospective | blind |