Author, year | Selection | Comparability | Outcome | Total score | |||||
---|---|---|---|---|---|---|---|---|---|
Exposed cohort | Non-exposed cohort | Ascertainment of exposure | Outcome of interest | Control for factor | Assessment of outcome | Follow-up long enough | Adequacy of follow-up | ||
Enkhbat, 2018 [15] | * | * | * | ** | * | * | 7 | ||
Masugi, 2016 [35] | * | * | * | ** | * | * | 7 | ||
Saigusa, 2016 [16] | * | * | * | ** | * | * | 7 | ||
Zhu, 2015 [36] | * | * | * | ** | * | * | 7 | ||
Liang, 2014 [17] | * | * | * | * | ** | * | * | 8 | |
Droeser, 2014 [37] | * | * | * | ** | * | * | 7 | ||
Hamada, 2017 [20] | * | * | * | ** | * | * | 7 | ||
Lee, 2018 [18] | * | * | * | ** | * | * | 7 | ||
Li, 2016 [19] | * | * | * | ** | * | * | 7 | ||
Miller, 2017 [38] | * | * | * | ** | * | * | 7 |