From: Sleep disorders in rare genetic syndromes: a meta-analysis of prevalence and profile
Inclusion criteria | Exclusion criteria |
---|---|
Study reports the number of participants with the genetic syndrome who met a clinical cut-off for that syndrome (not an associated syndrome e.g., Fragile X-associated tremor/ataxia syndrome) | Study does not report the number of participants who met a clinical cut-off for that syndrome |
Study reports on a unique sample (or a potentially overlapping sample, but the proportion of overlap cannot be readily determined) | Study reports on exactly the same sample as reported in a previous study |
Participants recruited without any specific bias (e.g., not recruited for a drug trial for a sleep disorder) | Participants were recruited due to an existing sleep disorder |
Study reports the number of participants with the genetic syndrome who had a sleep disorder or difficulty | It is not possible to determine the number of participants with the sleep disorder or difficulty included in the study |
Data in the study were extractable for meta-analysis (e.g., number of participants presenting sleep disorder) | Data in the study were not extractable for meta-analysis (e.g., mean questionnaire scores) |
Sleep was reported as a naturally occurring phenomenon, not through manipulation | Sleep was reported as an adverse event of treatment or following experimental manipulation |
Study reports the number of participants experiencing a sleep disorder, not solely the number taking medication to treat a sleep disorder | Study reports only the number of participants who were taking medication for sleep disorder |
Study reports prevalence of sleep disorder or difficulty | Study reports only sleep times or architecture |