AI Article Synopsis
- Dementia screening in elderly individuals with low education can be challenging; however, informant reports using the Brazilian versions of the IQCODE (L, S, and a new short version SBr) show potential for effective assessment.
- The study evaluated 34 patients with mild to moderate dementia and 57 controls, using the MMSE and IQCODE while ensuring interviewers were blind to diagnoses, confirming that education correlates with MMSE but not with IQCODE versions.
- Results indicated that while the MMSE classified 85.7% correctly, the IQCODE versions had a higher accuracy rate of 91.2%, suggesting these tools are suitable for dementia screening in low-education populations without bias.
Article Abstract
Background: Dementia screening in elderly people with low education can be difficult to implement. For these subjects, informant reports using the long (L) (26 items) and short (C) (16 items) versions of the Informant Questionnaire on Cognitive Decline in the Elderly (IQCODE) can be useful. The objective of the present study was to investigate the performance of Brazilian versions of the IQCODE L, S and a new short version (SBr) (15 items) in comparison with the Mini-mental State Examination (MMSE) for dementia screening in elderly people with low education.
Methods: Thirty-four patients with mild to moderate dementia, diagnosed according to ICD-10 criteria, and 57 controls were evaluated and divided into three groups based on their socioeconomic status and level of education. Patients were evaluated using the MMSE and the informants were interviewed using the IQCODE by interviewers blind to the clinical diagnosis.
Results: Education was correlated with MMSE results (r = 0.280, p = 0.031), but not with the versions of the IQCODE. The performance of the instruments, evaluated by the ROC curves, was very similar, with good internal consistency (Cronbach's alpha = 0.97). MMSE correctly classified 85.7% of the subjects while the three IQCODE versions (L, S and SBr) correctly classified 91.2% of the subjects.
Conclusions: The long, short and the new short Brazilian IQCODE versions can be useful as a screening tool for mild and moderate patients with dementia in Brazil. The IQCODE is not biased by schooling, and it seems to be an adequate instrument for samples with low levels of education.
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| http://dx.doi.org/10.1017/S1041610209008849 | DOI Listing |
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