Validation of the clock drawing test - manos version - as a screening test for detection of dementia in older persons of Lima; Peru

Authors

  • Nilton Custodio Unidad de Diagnóstico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Perú. Unidad de Investigación, Clínica Internacional, Lima, Perú. Servicio de Neurología, Clínica Internacional, Lima, Perú. Médico neurólogo.
  • Alberto García Servicio de Neurología, Instituto Médico Miraflores, Lima, Perú. Médico neurólogo.
  • Rosa Montesinos Unidad de Diagnóstico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Perú. Unidad de Investigación, Clínica Internacional, Lima, Perú. Servicio de Medicina Física y Rehabilitación, Clínica Internacional, Lima, Perú. Médico rehabilitador.
  • David Lira Unidad de Diagnóstico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Perú. Unidad de Investigación, Clínica Internacional, Lima, Perú. Servicio de Neurología, Clínica Internacional, Lima, Perú. Médico neurólogo. Magíster en Salud Pública.
  • Liliana Bendezú Unidad de Diagnóstico de Deterioro Cognitivo y Prevención de Demencia, Clínica Internacional, Lima, Perú. Servicio de Neurología, Hospital Militar Central. Lima, Perú. Médico neurólogo.

DOI:

https://doi.org/10.17843/rpmesp.2011.281.452

Keywords:

Dementia, Alzheimer Disease, Sensitivity and Specificity, Diagnostic Techniques, Neurological, Aged

Abstract

Introduction. The clock drawing test (PDR-M) - Manos´ version - is a brief cognitive assessment tool for dementia detection. Objectives. To assess the validity and reliability of the PDR-M to discriminate between patients with dementia and healthy control subjects. Materials and methods. We evaluated subjects over 65 years of age, excluding those with severe concomitant diseases and those with hearing or visual impairment. We obtained demographic data and performed the PDR-M and Mini Mental State Examination (MMSE). Subjects of the dementia group were also submitted to clinical, laboratory and neuropsychological evaluations as well as computed tomography scanning. Sensitivity and specificity of the PDR-M were calculated as well as the area under the ROC curve. Results. We evaluated 210 individuals, 103 with confirmed diagnosis of dementia and 107 healthy controls with similar age and sex in both groups, but a higher educational level in the control group. Setting a cutoff point of 7, a sensitivity of 99.0% and a specificity of 83.5% were found. When comparing the areas under the ROC curves of the PDR-M and MMSE we found no statistically significant difference. Conclusions. The PDR-M is a brief and reliable instrument for the detection of dementia in the urban population of Lima, Peru.

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Published

2011-03-31

Issue

Section

Research Articles

How to Cite

1.
Custodio N, García A, Montesinos R, Lira D, Bendezú L. Validation of the clock drawing test - manos version - as a screening test for detection of dementia in older persons of Lima; Peru. Rev Peru Med Exp Salud Publica [Internet]. 2011 Mar. 31 [cited 2024 Mar. 28];28(1). Available from: https://rpmesp.ins.gob.pe/index.php/rpmesp/article/view/452

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