stduy | Selection | Comparability | Outcome |
---|
Item 1 | Item 2 | Item 3 | Item 4 | Item 5 | Item 6 | Item 7 | Item 8 |
---|
Benecke 2001 [8] | | ☆ | ☆ | ☆ | ☆ | | ☆ | ☆ |
Min 2018 [26] | ☆ | ☆ | ☆ | ☆ | ☆☆ | ☆ | ☆ | ☆ |
Vos 2005 [27] | ☆ | ☆ | ☆ | ☆ | ☆☆ | ☆ | | |
Yang 2019 [28] | ☆ | ☆ | ☆ | ☆ | ☆☆ | ☆ | ☆ | ☆ |
Fu 2017 [29] | ☆ | ☆ | ☆ | ☆ | ☆ | ☆ | ☆ | ☆ |
- Item 1: Representativeness of the exposed cohort
- Item 2: Selection of the non - exposed cohort
- Item 3: Ascertainment of exposure
- Item 4: Demonstration that outcome of interest was not present at start of study
- Item 5: Comparability of cohorts on the basis of the design or analysis
- Item 6: Assessment of outcome
- Item 7: Was follow-up long enough for outcomes to occur
- Item 8: Adequacy of follow up of cohorts