Table 2: Cognitive functions in the Study Groups.

From: Aldehyde dehydrogenase 2 is associated with cognitive functions in patients with Parkinson’s disease

 rs671(GG) (n = 76)rs671(AG) and (AA) (n = 63)Statisticp Value
meanSDmeanSD
Mini-Mental State Examination27.243.50625.734.505U = 1873.50.026
 Orientation9.530.9738.971.814U = 2054.50.085
 Attention6.991.4006.841.461U = 2260.50.540
 Memory2.081.0301.701.159U = 1956.50.051
 Language4.860.4234.650.600U = 1993.50.014
  Naming2.000.0002.000.000U = 2394.01.00
  Repetition100% 100% 
  Reading comprehension96.1% 92.1% χ2 = 1.0110.261
  Make up a sentence89.5% 73.0% χ2 = 6.3250.011
 Follow a 3-step command2.930.2502.780.552U = 2128.50.042
 Construction81.6% 77.8% χ2 = 0.3090.364
Clinical Dementia Rating Scale
 031.6% 33.3% χ2 = 5.1510.076
 0.564.5% 52.4%   
 ≥13.9% 14.3%   
CDR-Memory
 034.2% 36.5% χ2 = 2.8720.238
 0.547.4% 34.9%   
 ≥118.4% 28.6%   
CDR-Orientation
 072.4% 69.8% χ2 = 2.6490.266
 0.522.4% 17.5%   
 ≥15.3% 12.7%   
CDR-Judgement
 078.9% 66.7% χ2 = 4.2710.118
 0.517.1% 20.6%   
 ≥13.9% 12.7%   
CDR-Community Affairs
 077.6% 76.2% χ2 = 1.9410.379
 0.517.1% 12.7%   
 ≥15.3% 11.1%   
CDR-Home Hobbies
 078.9% 79.4% χ2 = 7.5240.023
 0.517.1% 6.3%   
 ≥13.9% 14.3%   
CDR-Personal Care
 093.4% 85.7% χ2 = 2.2590.111
 ≥16.6% 14.3%