Subjective cognitive impairment, cognitive disorders and self-perceived health: The importance of the informant
Comprometimento cognitivo subjetivo, alterações cognitivas e autopercepção de saúde: a importância do informante
Dement. neuropsychol; 13 (3), 2019
Publication year: 2019
ABSTRACT There is great divergence of results in the literature regarding the clinical relevance and etiology of subjective cognitive impairment (SCI). Currently, SCI is studied as a pre-clinical symptom of Alzheimer's disease, before establishing a possible diagnosis of mild cognitive impairment (MCI). The hypothesis was that SCI is associated with low cognitive performance and poor self-perceived health.
Objective:
to investigate the relationship of SCI with objective cognitive impairment and self-perceived health in older individuals and to compare SCI reported by the elderly subjects and by their respective informants.Methods:
83 subjects participated in the study, divided between the forms of the Memory Complaint Scale (MCS). Cognition was evaluated by the Addenbrooke's Cognitive Examination - Revised and self-perceived health by the Short Form Health Survey-8.Results:
there was no association between SCI and self-perceived health. SCI reported by the older adults was associated with executive functions. SCI reported by the informant was associated with overall cognitive performance, memory, verbal fluency and visuospatial functions.Conclusion:
we found more robust results between SCI reported by the informant and cognitive impairment in the elderly assessed. There is a need to include and value the perception of someone who knows the older individual well enough to evaluate SCI globally.
RESUMO Há grande divergência de resultados na literatura em relação à relevância clínica e à etiologia do comprometimento cognitivo subjetivo (CCS). Atualmente, o CCS é estudado como um sintoma pré-clínico da doença de Alzheimer, antes de se estabelecer um possível diagnóstico de CCL. A hipótese é que o CCS pode estar associado a um desempenho inferior em testes cognitivos ou a uma autopercepção de saúde ruim.