Table 1.
Mean demographic and neuropsychological data (with standard deviations) for Analysis 1 and 2 participant groups.
| Groups (Analysis 1) | Groups (Analysis 2) | |||||
|---|---|---|---|---|---|---|
|
| ||||||
| Variable or Test | HOA (n=50) | PD (n=25) | HOA (n = 18) | PDNOMCI (n = 16) | PDMCI (n = 9) | MCI (n = 9) |
| Age | 68.60 (9.87) | 69.08 (10.12) | 70.00 (9.76) | 71.50 (10.10) | 64.78 (9.15) | 68.67 (6.46) |
| Education | 16.66 (2.47) | 16.00 (2.94) | 16.89 (2.22) | 15.88 (3.20) | 16.22 (2.59) | 17.33 (1.80) |
| Gender (% female) | 72% | 52% | 72% | 50% | 44% | 67% |
| WTAR standard score | 115.08 (7.45) | 112.88 (11.43) | 114.88 (7.27) | 116.00 (11.14) | 107.67 (10.49) | 111.22 (10.88) |
| TICS total score | 35.41 (2.44) | 34.20 (3.35) | 35.29 (2.31) | 34.87 (3.79) | 33.00 (2.06) | 32.71 (1.60) |
| Years since PD diagnosis | - | 6.35 | - | 4.85 | 9.02 | - |
| PD Medicationsa | - | 70% | - | 67% | 75% | - |
| Grooved Pegboardb | ||||||
| Dominant hand | 87.94 (24.14) | 141.45 (70.83) | 82.94 (17.14) | 120.71 (58.51) | 177.75 (79.54) | 95.56 (21.28) |
| Non-dominant hand | 95.65 (24.32) | 129.68 (60.59) | 98.15 (45.31) | 118.92 (33.64) | 148.14 (91.10) | 94.00 (41.29) |
HOA=healthy older adult, PD=Parkinson’s disease, MCI = mild cognitive impairment, WTAR = Wechsler Test of Adult Reading (a measure of premorbid verbal ability), TICS = Telephone Interview of Cognitive Status.
a
Medical records unavailable for one PDNOMCI and one PDMI participant.
b
A measure of manipulative dexterity.