Table 1. Demographic and clinical characteristics of the study population.
| Total PD Mean (SD) | PD-TDT | PD-ART | ET Mean (SD) | Control Mean (SD) | |
|---|---|---|---|---|---|
| Number | 72 | 33 | 33 | 29 | 28 |
| Gender | |||||
| Male, n (%) | 38 (52.7%) | 17 (51.5%) | 18 (54.5%) | 21 (72.4%) | 15 (53.6%) |
| Female, n (%) | 34 (47.3%) | 16 (48.5%) | 15 (45.5%) | 8 (27.6%) | 13 (46.4%) |
| Age (years) | 53.02 (10.05) * | 53.63 (8.81) | 51.96 (11.29) | 46.14 (17.66) | 45.05 (16.71) |
| Duration of illness (years) | 5.01 (3.87) † | 5.5 (3.39) † | 4.43 (4.26) † | 10.69 (7.83) | - |
| Age of onset (years) | 48.02 (10.95) † | 48.19 (9.65) † | 47.5 (12.24) † | 35.37 (16.47) | - |
| FTMRS | 42.51 (13.84) | ||||
| H&Y Off | 2.77 (1.05) | 2.60 (0.95) | 2.91 (1.20) | - | - |
| H&Y On | 1.09 (0.83) | 1.03 (0.82) | 1.21 (0.88) | - | - |
| S&E Off | 54.92 (21.96) | 59.68 (21.62) | 50.30 (23.24) | - | - |
| S&E On | 85.35 (14.32) | 86.25 (12.88) | 83.33 (16.32) | - | - |
| UPDRS I | 3.92 (2.60) | 3.75 (2.51) | 4.12 (2.87) | - | - |
| UPDRS II off | 18.44 (10.46) | 17.93 (10.51) | 18.21 (10.52) | - | - |
| UPDRS II on | 6.10 (6.47) | 5.45 (5.53) | 6.09 (7.29) | - | - |
| UPDRS III off | 38.57 (19.31) | 40.24 (21.02) | 37.03 (18.55) | - | - |
| UPDRS III on | 14.68 (12.73) | 14.54 (13.11) | 14.87 (13) | - | - |
PD, Parkinson’s Disease; ET, essential tremor; SD, standard deviation; FTMRS, Fahn–Tolosa–Martin Tremor Rating Scale; H&Y, Hoehn and Yahr Scale; S&E, Schwab and England Scale, UPDRS, Unified Parkinson’s Disease Rating Scale; TDT, tremor dominant type; ART, akinetic rigid type.
*P<0.05 compared to control.
†P<0.05 compared to ET group.
P-value was adjusted using Bonferroni method.