Table 3 Demographic and clinical characteristics of the two groups of rs894280 variant.

From: Investigating the relationship between the SNCA gene and cognitive abilities in idiopathic Parkinson’s disease using machine learning

Demographic/clinical characteristics

Mean, SD, (Min, Max)

CC

n = 33

CT/TT

n = 68

Significance

Age (years)

71.5, ± 7.3

69.2, ± 7.3

0.14a

Education (years)

14.6, ± 3.2

14.3, ± 2.3

0.66a

Disease duration (years)

5.6, ± 4.2

5.7, ± 4.0

0.56b

LEDD (mg/d)

767.7, ± 300.9

918.2, ± 511.7

0.31b

UPDRS-III

18.14, ± 7.82

20.10, ± 10.09

0.44b

EHI

69, ± 40

69, ± 40

0.83b

Sex (female%)

33%

31%

0.82c

Ethnicity

European descent

88%

82%

0.67d

Others

9%

10%

 

NA

3%

7%

 
  1. Abbreviations; SD = Standard Deviation, LEDD = Levodopa Equivalency Daily dosage, UPDRS-III = Unified Parkinson’s disease Rating Scale part III, EHI = Edinburg Handedness Inventory, NA = Not available.
  2. aStudent-t test.
  3. bMann–Whitney U test.
  4. cFisher exact test.
  5. dChi-square test.
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