Table 1 Demographic data and main SAA results.
PD (N = 27) | RBD (N = 18) | Atypical parkinsonism (N = 6) | Control (N = 30) | P-value | |
|---|---|---|---|---|---|
Sex: female | 7 (25.9%) | 3 (16.7%) | 4 (66.7%) | 13 (43.3%) | 0.063 |
Male | 20 (74.1%) | 15 (83.3%) | 2 (33.3%) | 17 (56.7%) | |
Age, mean (SD) | 64.0 (8.78) | 65.9 (6.99) | 69.4 (4.74) | 60.7 (11.1) | 0.098 |
H&Y stage: mean (SD) | 2.56 (0.70) | – | 3.00 (0.89) | – | 0.189 |
Duration, years: mean (SD) | 12.4 (5.62) | 8.21 (7.07) | 3.33 (2.42) | – | 0.003 |
Positive nasal brushing SAA, N (% of sampled) | 13 (48.1%) | 12 (67%): 8 right-sided (44.4%), 11 (61.1%) left-sided | 1/3 MSA, 0/3 PSP | 3 (10.0%) | <0.001 |
Positive skin biopsy SAA, N/total: (% of sampled) | 15/19 (78.9%) | 15/15 (100%) | 3/3 MSA, 0/3 PSP | NA | 0.113 for PD vs. iRBD |
Thigh | 12 (70.6%) | 14 (93.3%) | 3 (60.0%) | NA | 0.095 for PD vs. iRBD |
Neck (C7) | 9 (47.4%) | 13 (86.7%) | 3 (60.0%) | NA | 0.043 for PD vs. iRBD |
