Group | First author (year) | Selection | Comparable | Exposure/outcome | Total stars (out of 9) | |||||
---|---|---|---|---|---|---|---|---|---|---|
Validation of case definition or cohort exposure | Representative sample | Selection of controls or non-exposed cohort | Definition of controls or non-exposed cohort | Groups comparable in design and analysis | Assessment of exposure or outcome | Same method used for both groups or adequate follow-up period | Non-response rate or loss to follow-up | Ā | ||
Acute | Fleck et al. (2008) | * | * | ā | * | ** | ā | ā | ā | 5 |
Lebowitz et al. (2001) | * | ā | ā | ā | ** | ā | * | ā | 4 | |
Strakowski et al. (2008) | ā | ā | * | * | ** | ā | * | * | 6 | |
Remission | Elshahawi et al. (2011) | ā | ā | ā | * | ** | ā | * | ā | 4 |
Hellvin et al. (2012) | * | * | * | * | ** | ā | * | ā | 7 | |
Lopez-Jaramillo et al. (2010) | * | * | ā | * | ** | ā | * | ā | 6 | |
Torres et al. (2010) | ā | * | * | * | ** | ā | * | ā | 6 |