Table 1 Descriptive statistics
Mean ( SD) | Range | |
|---|---|---|
Age | 61.50 (12.69) | 40 - 96 |
Years of education | 10.86 (4.26) | 0 - 20 |
Arsenic (μg/l) | 6.42 (2.99) | 2.19 - 15.25 |
Selenium (μg/l) | 18.05 (10.62) | 3.95 - 56.31 |
MMSE-World | 27.61 (2.64) | 12 - 30 |
EXIT25-Total | 7.26 (4.61) | 1 - 23 |
RBANS Immediate memory index | 40.78 (9.20) | 14 - 61 |
RBANS Visuospatial index | 29.19 (6.08) | 0 - 40 |
RBANS Language index | 27.20 (5.16) | 11 - 41 |
RBANS Attention index | 46.92 (15.98) | 9 - 100 |
RBANS Delayed memory index | 35.50 (9.04) | 10 - 60 |
RBANS Total index | 86.34 (15.49) | 49 - 136 |