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Table 6 Genotype and allele frequencies from previous case–control studies of Japanese populations investigating the association between UCHL1 S18Y polymorphism and Parkinson’s disease*

From: UCHL1 S18Y variant is a risk factor for Parkinson’s disease in Japan

 

Zhang et al. [[6]]

Momose et al. [[7]]

Mizuta et al. [[9]]

Snapinn et al. [[25]]

 

Cases

Controls

Cases

Controls

Cases

Controls

Cases

Controls

Genotype

N = 160

N = 160

N = 230

N = 248

N = 613

N = 736

N = 605

N = 1620

CC

52 (32.5)

35 (21.9)

71 (30.9)

61 (24.6)

149 (24.3)

199 (27.0)

150 (24.8)

412 (25.4)

CA

77 (48.1)

86 (53.8)

119 (51.7)

122 (49.2)

340 (55.5)

366 (49.7)

313 (51.7)

805 (49.7)

AA

31 (19.4)

39 (24.4)

40 (17.4)

65 (26.2)

124 (20.2)

171 (23.2)

142 (23.5)

403 (24.9)

Allele

N  = 320

N  = 320

N  = 460

N  = 496

N  = 1226

N  = 1472

N  = 1210

N  = 3240

C

181 (56.6)

156 (48.8)

261 (56.7)

244 (49.2)

638 (52.0)

764 (51.9)

613 (50.7)

1629 (50.3)

A

139 (43.4)

164 (51.3)

199 (43.3)

252 (50.8)

588 (48.0)

708 (48.1)

597 (49.3)

1611 (49.7)

  1. * n (%).
  2. Data were based on a meta-analysis by Ragland et al. [5]; excluded cases included in genotype counts in the Momose et al. study [7].