Table 2.
Sociodemographic and disease-related features of study groups.
| Total (298) | 95% CI | NC (72) | PD-MCI (82) | PDD (144) | p* | |
|---|---|---|---|---|---|---|
| Age, year | 68.06 (9.62) | 66.96–69.16 | 63.26 (10.17) | 63.90 (9.46) | 72.83 (6.78) | <0.001a |
| Sex, % men | 62.40 | 65.30 | 52.40 | 66.70 | 0.089b | |
| Education, year | 8.70 (4.41) | 8.20–9.21 | 11.19 (4.08) | 9.23 (4.35) | 7.16 (3.98) | <0.001a |
| Age at onset, year | 58.49 (10.12) | 57.34–59.65 | 56.99 (10.98) | 56.35 (11.77) | 60.47 (8.17) | 0.026a |
| Disease duration, year | 9.57 (6.47) | 8.83–10.31 | 6.28 (4.26) | 7.55 (4.62) | 12.36 (7.09) | <0.001a |
| Treatment, % | ||||||
| L-dopa | 62.80 | 59.70 | 64.60 | 63.20 | 0.811b | |
| Agonists | 18.10 | 33.30 | 25.60 | 6.30 | <0.001b | |
| Marital status, % married | 68.80 | 73.60 | 72.00 | 64.60 | 0.309b | |
| Employment, % employees | 17.10 | 47.20 | 15.90 | 2.80 | <0.001b |
Continuous variables are expressed as means (standard deviations). Categorical variables are expressed as percentages. *Differences are calculated with
a
Kruskal-Wallis test and
b
Chi-square test. CI, confidence interval; NC, normal cognition; PD-MCI, Parkinson's disease-Mild cognitive impairment; PDD, Parkinson's disease dementia.