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Cognitive performance of subjects included in the study (n = 1780)
| Neuropsychological tests | 10th percentile | 25th percentile | Median | 75th percentile | Range |
|---|---|---|---|---|---|
| Mini-Mental State Examination (n = 1766) | 23 | 26 | 28 | 29 | (14–30) |
| Benton Visual Retention Test (n = 1579) | 8 | 10 | 11 | 13 | (0–15) |
| Isaacs’ Set Test of verbal fluency (n = 1596) | 20 | 23 | 27 | 31 | (2–52) |
