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Age, gender and education levels of the subjects.
| Characteristic | Young n=45 | Elderly n=45 |
|---|---|---|
| Age in years (mean and standard deviation) | 22.28 (±2.97) | 73.04 (±6.82) |
| Gender (M/F) | 14/31 | 9/36 |
| Education (illiterate/literate) | 0/45 | 1/44 |
| Education in years (mean and standard deviation) | 13.22 (±1.24) | 7.32 (±4.75) |
