Fig. 2From: Genetic heterogeneity on sleep disorders in Parkinson’s disease: a systematic review and meta-analysisForest plot of the risk and severity of RBD in PD patients with GBA variants. Forest plots display meta-analysis results on the risk (a) and severity (b) of RBD in PD patients with GBA variants compared with iPD. PD Parkinson’s disease, iPD idiopathic Parkinson’s disease, GBA glucocerebrosidase gene, OR odds ratio, SMD standard mean differenceBack to article page