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. 2024 Aug 28;13:976. [Version 1] doi: 10.12688/f1000research.153743.1

Table 2. Risk of bias of included studies.

No. Study Study participation Study attrition Prognostic factor measurement Outcome measurement Adjustment for other prognostic factors Statistical analysis & reporting
1. Kang JS 2017 Moderate Moderate Low Low Low Moderate
2. Ansari D 2019 Low Low Low Low Low Low
3. Saadat LV 2021 Moderate Low Low Low Moderate Moderate
4. Dai D 2019 Low Low Low Low Low Low
5. Piciucchi M 2015 Moderate Moderate Low Low Moderate Low
6. Tingstedt B 2011 Low Moderate Low Low Low Moderate
7. He J 2013 Low Low Low Low Moderate Moderate
8. Ordonez JE 2020 Low Low Low Low Low Low
9. Beeghly-Fadiel A 2016 Low Low Low Low Low Low
10. Whitley A 2023 Low Low Low Low Moderate Moderate
11. Castet F 2023 Low Low Low Low Low Low
12. Zironda A 2023 Low Low Low Low Low Low
13. Takeda T 2022 Low Low Low Low Moderate Moderate
14. Ren S 2023 Low Low Low Low Low Moderate
15. Ramai D 2021 Moderate Low Low Low Low Moderate
16. Wang H 2020 Low Low Low Low Low Low
17. Mendis S 2024 Low Low Low Low Moderate Low