Although almost all the subsequent studies in the Chinese population suggested that CHCHD2 mutations are not a common cause of PD in Chinese familial or sporadic cases (Gao et al., 2017; Liu et al., 2015; Shi et al., 2016), our findings provide new evidence of the role of this gene in susceptibility to sporadic PD in China. This evidence concerns the gene CHCHD2 and Parkinson disease.