Table 2.
Characteristics and distribution of MoCA subscores in PD patients with normal cognition, cognitive impairments, and patients suspicious for dementia.
| Normal cognition n = 22 | Impaired n = 46 | Dementia n = 53 | |
|---|---|---|---|
| MoCA | 27.9 ± 1.3 | 23.6 ± 1.5 | 14.5 ± 5.8 |
| MoCA-EIS | 70.7% ± 4.7% | 60.0% ± 9.3% | 35.3% ± 18.6% |
| MoCA-VIS | 90.0% ± 10.0% | 86.0% ± 1.4% | 62.0% ± 26.0% |
| MoCA-AIS | 88.9% ± 13.8% | 74.4% ± 16.1% | 51.1% ± 28.3% |
| MoCA-OIS | 67.8% ± 6.7% | 65.6% ± 3.3% | 48.9% ± 20.0% |
| MoCA-MIS | 80.7% ± 18.7% | 47.3% ± 27.3% | 13.3% ± 23.3% |
| MoCA-LIS | 95% ± 10% | 83.3% ± 13.3% | 61.7% ± 26.6% |
| PDQ-8 | 30.5% ± 17.1% | 38.3% ± 20.0 | 44.8% ± 14.1% |
| BDI | 10.0 ± 4.5 | 9.5 ± 7.1 | 12.5 ± 6.2 |
| HaY stage | 2.6 ± 1.1 | 3.2 ± 1.0 | 4.0 ± 0.8 |
| Disease duration | 11.1 ± 6.4 | 13.2 ± 7.1 | 16.2 ± 7.8 |
| Age | 64.2 ± 10.7 | 71.5 ± 7.4 | 77.4 ± 6.0 |
| PDCB | 31.6 ± 25.4 | 27.0 ± 25.1 | 49.0 ± 25.3 |
Participating patients were grouped in 3 categories: normal cognition (MoCA 30-26 points), cognitively impaired (MoCA 25-21 points), and dementia (MoCA below 21 points). MoCA subscores were displayed in percentage for better comparability between different subscores. Since we wanted to avoid loss of information in group effects, we did not calculate an ANOVA analysis on these data. Missing data: 3 patients. BDI, Beck Depression Inventory; HaY, Hoehn and Yahr; MoCA, Montreal cognitive assessment scale; EIS, executive index score; VIS, visual index score; AIS, attention index score; OIS, orientation index score; MIS, memory index score; LIS, language index score; PDQ-8, Parkinson's disease questionnaire 8; PDCB Parkinson's disease caregiver burden questionnaire.