Table 3.
Quality assessment of cohort studies using Newcastle-Ottawa Scale.
| Author | Year | Selection | Comparability | Outcomes | Total | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| 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 | Comparability of cohorts on the basis of the design or analysis | Assessment of outcome | Was follow-up long enough for outcomes to occur? | Adequacy of follow-up of cohorts | ||||
| Biancari | 2019 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 9 |
| Ortmann | 2014 | 1 | 1 | 1 | 1 | 0 | 1 | 1 | 1 | 1 | 8 |