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Prevalence and correlates of cognitive impairment in kidney transplant recipients.


ABSTRACT:

Background

There is a high prevalence of cognitive impairment in dialysis patients. The prevalence of cognitive impairment after kidney transplantation is unknown.

Methods

Study Design: Cross-sectional study.

Setting and participants

Single center study of prevalent kidney transplant recipients from a transplant clinic in a large academic center.

Intervention

Assessment of cognition using the Montreal Cognitive Assessment (MoCA). Demographic and clinical variables associated with cognitive impairment were also examined. Outcomes and Measurements: a) Prevalence of cognitive impairment defined by a MoCA score of <26. b) Multivariable linear and logistic regression to examine the association of demographic and clinical factors with cognitive impairment.

Results

Data from 226 patients were analyzed. Mean (SD) age was 54 (13.4) years, 73% were white, 60% were male, 37% had diabetes, 58% had an education level of college or above, and the mean (SD) time since kidney transplant was 3.4 (4.1) years. The prevalence of cognitive impairment was 58.0%. Multivariable linear regression demonstrated that older age, male gender and absence of diabetes were associated with lower MoCA scores (p < 0.01 for all). Estimated glomerular filtration rate (eGFR) was not associated with level of cognition. The logistic regression analysis confirmed the association of older age with cognitive impairment.

Conclusion

Cognitive impairment is common in prevalent kidney transplant recipients, at a younger age compared to general population, and is associated with certain demographic variables, but not level of eGFR.

SUBMITTER: Gupta A 

PROVIDER: S-EPMC5429555 | biostudies-literature | 2017 May

REPOSITORIES: biostudies-literature

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Publications

Prevalence and correlates of cognitive impairment in kidney transplant recipients.

Gupta Aditi A   Mahnken Jonathan D JD   Johnson David K DK   Thomas Tashra S TS   Subramaniam Dipti D   Polshak Tyler T   Gani Imran I   John Chen G G   Burns Jeffrey M JM   Sarnak Mark J MJ  

BMC nephrology 20170512 1


<h4>Background</h4>There is a high prevalence of cognitive impairment in dialysis patients. The prevalence of cognitive impairment after kidney transplantation is unknown.<h4>Methods</h4>Study Design: Cross-sectional study.<h4>Setting and participants</h4>Single center study of prevalent kidney transplant recipients from a transplant clinic in a large academic center.<h4>Intervention</h4>Assessment of cognition using the Montreal Cognitive Assessment (MoCA). Demographic and clinical variables as  ...[more]

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