open access

Vol 45, No 1 (2011)
ARTYKUŁ ORYGINALNY
Submitted: 2010-02-18
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Educational level and cognitive impairment in patients with Parkinson disease

Anna Kierzynka, Radosław Kaźmierski, Wojciech Kozubski
DOI: 10.1016/S0028-3843(14)60056-6
·
Neurol Neurochir Pol 2011;45(1):24-31.

open access

Vol 45, No 1 (2011)
ARTYKUŁ ORYGINALNY
Submitted: 2010-02-18

Abstract

Background and purpose

Parkinson disease (PD) is a risk factor for dementia. In addition, specific cognitive deficits can occur in PD patients without dementia. A patient's level of education could have an influence on the development of cognitive impairment in PD. The aim of this study was to examine the relationship between the level of education and cognitive performance in non-demented patients with PD.

Material and methods

Thirty-seven consecutive, nondemented PD patients and 40 healthy controls fulfilled the inclusion criteria and were enrolled in the case-control study. Each of the controls and PD patients were classified, for the purpose of this study, into one of three groups (low, intermediate, higher), categorized by the number of years of education. There were no differences in education and age between the controls and PD patients. All of the subjects were evaluated with a battery of neuropsychological tests: Mini-Mental State Examination, Trail Making Tests, Stroop Test, Mental Rotation Test, and Verbal Fluency Test.

Results

Less (low and intermediate) education was correlated with poor results from tests. The comparison of all groups of PD patients and controls demonstrated that PD subjects received lower test scores, especially for the low and intermediate groups. However, no statistically significant difference was reached between educationally advanced PD patients and the appropriate control subjects.

Conclusions

As compared to the controls, most non-demented PD patients presented executive-type cognitive dysfunction. The higher educational level, however, was associated with a lower risk of cognitive deterioration. We conclude that higher education might have protective effects in cognitive decline in PD.

Abstract

Background and purpose

Parkinson disease (PD) is a risk factor for dementia. In addition, specific cognitive deficits can occur in PD patients without dementia. A patient's level of education could have an influence on the development of cognitive impairment in PD. The aim of this study was to examine the relationship between the level of education and cognitive performance in non-demented patients with PD.

Material and methods

Thirty-seven consecutive, nondemented PD patients and 40 healthy controls fulfilled the inclusion criteria and were enrolled in the case-control study. Each of the controls and PD patients were classified, for the purpose of this study, into one of three groups (low, intermediate, higher), categorized by the number of years of education. There were no differences in education and age between the controls and PD patients. All of the subjects were evaluated with a battery of neuropsychological tests: Mini-Mental State Examination, Trail Making Tests, Stroop Test, Mental Rotation Test, and Verbal Fluency Test.

Results

Less (low and intermediate) education was correlated with poor results from tests. The comparison of all groups of PD patients and controls demonstrated that PD subjects received lower test scores, especially for the low and intermediate groups. However, no statistically significant difference was reached between educationally advanced PD patients and the appropriate control subjects.

Conclusions

As compared to the controls, most non-demented PD patients presented executive-type cognitive dysfunction. The higher educational level, however, was associated with a lower risk of cognitive deterioration. We conclude that higher education might have protective effects in cognitive decline in PD.

Get Citation

Keywords

Parkinson disease, cognitive impairment, educational level

About this article
Title

Educational level and cognitive impairment in patients with Parkinson disease

Journal

Neurologia i Neurochirurgia Polska

Issue

Vol 45, No 1 (2011)

Pages

24-31

DOI

10.1016/S0028-3843(14)60056-6

Bibliographic record

Neurol Neurochir Pol 2011;45(1):24-31.

Keywords

Parkinson disease
cognitive impairment
educational level

Authors

Anna Kierzynka
Radosław Kaźmierski
Wojciech Kozubski

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