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Applicability of a cognitive questionnaire in the elderly and proxy

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Title: Applicability of a cognitive questionnaire in the elderly and proxy
Authors: Fegyveres, Renata Areza, Formigoni, Ana Paula, Porto, Cláudia Sellitto, Goulart, Maria Teresa Carthery, Senaha, Mirna Lie Hosogi, Brucki, Sonia Maria Dozzi, Bahia, Valéria Santoro, Caramelli, Paulo, Smid, Jerusa, Nogueira, Neuma D´Ávila Pinto, Greven, Sandra Maria Garaude, Mansur, Letícia Lessa, Nitrini, Ricardo
Source: Dementia & Neuropsychologia. September 2008 2(3)
Publisher Information: Academia Brasileira de Neurologia, Departamento de Neurologia Cognitiva e Envelhecimento, 2008.
Publication Year: 2008
Subject Terms: evaluation, cognition, aged, cognitive tests, screenings.
More Details: The Informant Questionnaire on Cognitive Decline in the Elderly with the Proxy (IQCODE) was developed as a screening tool for cognition alterations. Objectives: 1) To verify the applicability of IQCODE in the elderly with limited schooling, 2) To verify the reliability of the responses supplied by the aged and their proxies. Methods: Individuals of a Community Group were evaluated using the Mini-Mental State Examination (MMSE), IQCODE and Geriatric Depression Scale (GDS). The IQCODE was applied to informants and proxies. Results: We analyzed 44 individuals, aged between 58-82 years (M=66.8, SD=5.97) with mean elderly-schooling level of 3.75, SD=2.82 and 44 proxies aged 44.5 (SD=13.3), with mean schooling level of 8.25 (SD=4.3). The mean GDS was 8.22, SD=4.90 and 13 participants presented a score suggestive of depressive symptoms. The mean elderly IQCODE score was 3.26, SD=0.69 and 3.21, SD=0.65, for proxy responses. There was no statistical difference between these means. On the MMSE, the mean score was 24.20, SD=4.14 and 18 participants presented scores below the cut-off. The IQCODE answers by the elderly in this latter group were more congruent with MMSE than the answers of proxies. Conclusions: The applicability of the IQCODE in a population with little schooling was verified in that the proxy-report was similar to the elderly report. We can affirm that the elderly answers were more accurate than the proxies, as they were closer to MMSE score. The inclusion of a greater number of participants from community-dwelling settings is necessary to confirm the results obtained in this study.
Document Type: article
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Language: English
ISSN: 1980-5764
DOI: 10.1590/S1980-57642009DN20300012
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  Data: <i>Dementia & Neuropsychologia</i>. September 2008 2(3)
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  Data: The Informant Questionnaire on Cognitive Decline in the Elderly with the Proxy (IQCODE) was developed as a screening tool for cognition alterations. Objectives: 1) To verify the applicability of IQCODE in the elderly with limited schooling, 2) To verify the reliability of the responses supplied by the aged and their proxies. Methods: Individuals of a Community Group were evaluated using the Mini-Mental State Examination (MMSE), IQCODE and Geriatric Depression Scale (GDS). The IQCODE was applied to informants and proxies. Results: We analyzed 44 individuals, aged between 58-82 years (M=66.8, SD=5.97) with mean elderly-schooling level of 3.75, SD=2.82 and 44 proxies aged 44.5 (SD=13.3), with mean schooling level of 8.25 (SD=4.3). The mean GDS was 8.22, SD=4.90 and 13 participants presented a score suggestive of depressive symptoms. The mean elderly IQCODE score was 3.26, SD=0.69 and 3.21, SD=0.65, for proxy responses. There was no statistical difference between these means. On the MMSE, the mean score was 24.20, SD=4.14 and 18 participants presented scores below the cut-off. The IQCODE answers by the elderly in this latter group were more congruent with MMSE than the answers of proxies. Conclusions: The applicability of the IQCODE in a population with little schooling was verified in that the proxy-report was similar to the elderly report. We can affirm that the elderly answers were more accurate than the proxies, as they were closer to MMSE score. The inclusion of a greater number of participants from community-dwelling settings is necessary to confirm the results obtained in this study.
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