Table 2 Details of study quality evaluation via the Newcastle–Ottawa Scale
Studies | Selection | Comparability | Outcome | Total | |||||
|---|---|---|---|---|---|---|---|---|---|
Author/Year | Representativeness of the exposed cohort | Selection of the non-exposed cohort | Ascertainment of exposure | Outcome of interest was not present at start of study | Assessment of outcome | Long enough follow-up for outcomes to occur | Adequacy of follow up of cohorts | ||
Ya-Ling Yang 2020 [16] | 1 | 1 | 1 | 0 | 1 | 0 | 0 | 1 | 6 |
Demet Ozkaramanli Gur 2021 | 1 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 7 |
Sanling Shi 2022 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |
Gokhan Demirci 2023 [27] | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |
Faysal Saylik 2021 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 1 | 6 |
Lütfi Öcal 2021 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 8 |
Wenjun Fan 2021 [29] | 1 | 0 | 1 | 0 | 1 | 1 | 1 | 1 | 7 |
Xing Wei 2023 [30] | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 8 |