Fig. 4
From: Sleep disorders in rare genetic syndromes: a meta-analysis of prevalence and profile
The profile of sleep disorders and ‘general’ sleep difficulties in each syndrome. The black circles represent the pooled prevalence estimates from the quality-effects model, with the overall prevalence of any sleep disorder/difficulty in each syndrome according to the quality-effects model presented as a dotted line for comparison. Abbreviations for sleep disorders and syndromes are used throughout