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Table 2 Polygenic variant load in the Italian cohort

From: Identification of sixteen novel candidate genes for late onset Parkinson’s disease

Series

N variants

PD cases (n = 394)

FPD (n = 172)

SPD

(n = 222)

Cnt. (n = 203)

p

OR

95%CI

MAF ≤ 0.001

0

197 (50.0%)

82 (47.6%)

115 (51.8%)

135 (66.5%)

baseline

  

1

129 (32.7%)

53 (30.8%)

76 (34.2%)

54 (26.6%)

0.014

1.6

1.1–2.4

≥2

68 (17.3%)

37 (21.6%)

31 (13.9%)

14 (6.8%)

4.4 × 10−5

3.3

1.8–6.7

MAF ≤ 0.001

including variants in GBA gene

0

182 (46.2%)

79 (45.9%)

103 (46.4%)

128 (63.0%)

baseline

  

1

130 (33.2%)

53 (30.8%)

77 (35.1%)

59 (29.0%)

0.028

1.55

1.04–2.32

≥2

82 (20.5%)

40 (23.2%)

42 (18.5%)

16 (7.2%)

3.4 × 10−6

3.59

1.97–6.90

  1. MAF Minor allele frequency, PD Parkinson’s disease, FPD Familial PD cases, SPD Sporadic PD cases, Cnt Controls fromTSI, Tuscan Italian population, MNI cohort and Moli-sani genetic biobank, p p-value calculated with Fisher Exact Probability Test, OR Odds Ratio, CI Confidence interval