Genetic variation in LINGO-1 (rs9652490) and risk of Parkinson's disease: Twelve studies and a meta-analysis

► The association between LINGO-1 variant and PD risk was assessed by a meta-analysis. ► A total of 6053 PD cases and 5997 controls were included. ► 4 studies among Asians and 8 studies among non-Asians were included in the analysis. ► The association between all genetic models of rs9652490 and PD were analyzed separately. ► The overlapped data which was used in the previous meta-analysis were excluded.