[Depression in Parkinson's disease and its relation to the cognitive and motor manifestations]

Evaluation with the geriatric depression scale carried out in 30 patients with Parkinson's disease who did not present subjective complaint of loss of memory or impairment in superior mental function capable of interfering in daily routine showed a high frequency of depression of 50-70% depending on where the cut-off in the geriatric depression scale was located. Depression in these patients does not significantly relate with either cognitive impairment or the degree of motor incapacity. Neither were depression or anxiety in these patients related with demographic data such as the age of the patient, age at onset of the disease, sex, months of evolution, or education. In contrast, a positive correlation was found between depression and anxiety.