Background Paroxysmal kinesigenic dyskinesia(PKD) is a rare involuntary movement disorder characterized by transient and recurrent dystonic or choreoathetoid attacks triggered by sudden voluntary movements.Since 2011,progress in genetics and pathophysiology has been made.Our study aimed to investigate and analyze the characteristics of social behavior,quality of life and related factors in patients with PKD in China.Methods A cross-sectional study was conducted regarding health-related behaviors in 188 pati...