GATA3 and Parkinson disease: Furthermore, GATA3 was positively associated with sleep disturbances measured by the Parkinson’s Disease Sleep Scale (PDSS) in the multivariable linear regression analysis (coefficient [95% CI] = 0.101 [0.02 to 0.18], p value = 0.01; Table 3), suggesting that lower GATA3 levels are linked to increased sleep disturbances in iPD patients.