Table 1

Baseline demographic Parkinson's disease motor, cognitive and other measures in each group

HCPD-Psy0PD-Psy1+PD-Psy2+
n=144n=286n=115n=21
Demographic
 Age (years)59.79±11.561.97±9.960.77±9.664.43±7.5
 GenderM=60%M=67%M=62%M=71%
PD
 Duration (months)6.51±6.36.92±7.28.52±7.2
 UPDRS part 1111.33±2.421.1±8.820.08±9.021.90±7.6
 Tremor onset %797576
 Bradykinesia onset %818785
 Rigidity onset %777476
 Postural onset %769
 Other onset %171614
 Left/symmetric onset434747
Non-cognitive
 RBD2.66±2.02.91±2.53.97±2.85.38±3.4
 Olfaction33.95±4.722.78±8.221.02±8.017.9±7.3
 GDS1.31±2.22.18±2.42.72±2.54.24±3.3
Cognitive
 MoCA28.2±1.027.1±2.327.16±2.326.29±3.0
 PD-MCI24%18%28%
 Fluency52.1±11.248.58±11.648.11±11.443.86±11.2*
 Hopkins delay9.27±2.38.26±2.58.65±2.47.71±3.0
 Benton line13.11±2.012.93±2.012.60±2.211.76±2.5
 Letter number10.97±2.510.52±2.610.68±2.69.8±2.9
  • Shaded cells indicate group comparisons between PD-Psy0 and PD-Psy1+ or PD-Psy2+ significant at p<0.05 (t-tests for independent samples).

  • *p=0.07 trend significance.