Table 3 Quality assessment results based on Newcastle-Ottawa scale for cohorts
Selection | Comparability | Outcome | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Author | Year | Representativeness of the exposed cohort | Selection of the non-exposed cohort | Ascertainment of exposure | Demonstration that outcome of interest was not present at start of study | The study controls for age, sex and marital status | Study controls for other factors | Assessment of outcome | Was follow-up long enough for outcomes to occur | Adequacy of follow-up of cohorts | Total |
Seung Hun Lee et al. | 2018 | * | * | * | * | * | * | * | * | * | 9 |
Yijie Xu et al. | 2018 | * | * | * | * | * | * | * | * | No statement | 8 |
Laura Sa´nchez-In˜igo, et al. | 2016 | * | * | * | * | * | * | No statement | * | No statement | 7 |
Mette Thomsen et al. | 2013 | * | * | * | * | * | * | * | * | No statement | 8 |
Alexandra et al. | 2012 | * | * | * | * | * | * | * | * | No statement | 8 |
Leon A et al. | 2011 | * | * | * | - | * | * | * | * | No statement | 7 |
Wataru Hirokawa et al. | 2010 | - | * | * | * | * | * | * | * | No statement | 7 |
Jiacheng Ding et al. | 2023 | * | * | * | * | * | * | * | * | No statement | 8 |
Jacob Opio et al. | 2022 | * | * | * | * | * | * | * | * | - | 8 |