Table 3: Stratification of Parkinson’s Disease (PD) Cases into Early (≤50 years) and Late Onset (>50 years), Comparing MIRO1 and MIRO2 Genotype Frequencies Analyzed using a Two-sided Chi-square (χ2) Test

Genotype Frequency % (n) χ2 P-value
MIRO1
rs16967164 AA AG GG
≤50 PD 62.3 (33) 40.0 (18) 3.8 (2) 0.45 0.80
>50 PD 66.7 (118) 31.1 (55) 2.2 (4) 0.06 0.97
Controls 66.3 (203) 31.1 (95) 2.6 (8)
MIRO2
rs1139897 GG GA AA
≤50 PD 49.1 (26) 45.3 (24) 5.7 (3) 0.79 0.67
>50 PD 59.6 (106) 32.0 (57) 8.4 (15) 3.51 0.17
Controls 51.1 (155) 40.3 (122) 8.6 (26)
rs3743912 CC CT TT
≤50 PD 77.4 (41) 22.6 (12) 0 - -
>50 PD 72.2 (127) 25.6 (45) 2.3 (4) 1.63 0.44
Controls 76.9 (233) 21.8 (66) 1.3 (4)