| Sex |
|
| Age (years old) |
|
| Years in Education (years) |
|
| Does a patient complain memory decline? |
|
| Do caregivers complain memory decline of a patient? |
|
| Has a patient been diagnosed with depression? |
|
| Duration of Parkinson’s disease (months) |
|
| Hoehn & Yahr stage |
|
| Score of part III (motor evaluation) of Unified Parkinson’s Disease Rating Scale (UPDRS) |
|