Table 2 The NOS assessment—longitudinal studies.
Selection | Comparability | Outcomes | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Study | Representativeness of exposed cohort | Selection of non-exposed cohort | Ascertainment of exposure | Demonstration that outcome of interest was not present at start of study | Adjust for the most important risk factors | Adjust for other risk factors | Assessment of outcome | Follow-up length | Loss to follow-up rate | Total quality score |
Carol127 | 1 | 0 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 7 |
De Vos et al.128 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 7 |
De Vylder et al.129 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 8 |
Dragt et al.65 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 0 | 1 | 5 |
Freitas et al.130 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 7 |
Jang et al.131 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 7 |
Kline et al.38 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 8 |
Kraan et al.132 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 7 |
Kraan et al.133 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 7 |
Masillo et al.134 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 6 |
Mason et al.135 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 0 | 1 | 5 |
Stowkowy et al.62 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 1 | 7 |
Trotman et al.21 | 0 | 1 | 1 | 1 | 0 | 1 | 1 | 0 | 1 | 6 |
