Delirium en centros residenciales para personas mayores. Estudio de la prevalencia y los factores asociados / Delirium in nursing homes. Prevalence and risk factors

Objetivos. Estudiar la prevalencia de delirium en ancianos institucionalizados en residencias para personas mayores; analizar los posibles factores clínicos, funcionales y mentales asociados. Material y métodos. Estudio epidemiológico transversal sobre una población de mayores de 65 años institucionalizados en 2011 en 6 residencias de Asturias. Se recogieron variables sociodemográficas, clínicas, funcionales (índice de Barthel [IB]), mentales (Mini-Mental State Examination [MMSE]). El diagnóstico de delirium se realizó en base al Confusion Assessment Method. Resultados. Quinientos cinco sujetos fueron incluidos en el estudio (83,30 ± 7,33 años; 67,70% mujeres; MMSE 17,19 ± 10,35; IB 55,11 ± 35,82). Se detectó una prevalencia de delirium del 11,70%. Se observó asociación estadística con delirium de: puntuación en IB, puntuación en MMSE, presencia de demencia, de úlceras por presión o de sonda urinaria y ser tratados con clometiazol, con inhibidores de la colinesterasa o con trazodona. Al realizar un análisis de regresión logística permanecieron como variables en el modelo la puntuación en el Barthel, el diagnóstico de demencia y el ser tratados con clometiazol o trazodona. Conclusiones. Para nuestra población de estudio, el 11,7% de los sujetos institucionalizados presenta delirium. Según los resultados obtenidos, la puntuación en IB así como la existencia de demencia y la prescripción de clometiazol o trazodona son factores que se asocian a la presencia de delirium en el medio residencial (AU)

Objectives. To study the prevalence of delirium in the residential environment and to analyse the associated clinical, functional and mental factors. Material and methods. A cross-sectional epidemic study was conducted on a population of elderly persons institutionalised in 2011 in 6 nursing homes in Asturias. Socio-demographic, clinical, functional (Barthel Index [BI]) and mental (Mini-Mental State Examination [MMSE]) variables were collected. Delirium was defined by the Confusion Assessment Method. Results. A total of 505 elderly were included in the study (age 83.30 ± 7.33 years, with 67.70% women), and scores on the MMSE of 17.19 ± 10.35 and a BI score of 55.11 ± 35.82. The prevalence of delirium was 11.70%. On examining the risk of delirium among the studied variables, there was statistical significance when considering: BI, MMSE, dementia, pressure ulcers, or urinary catheter, and the prescribing of clomethiazole, ACTH-I or trazodone. In the analysis of the variables in the logistic regression with BI, diagnosis of dementia, the prescribing of clomethiazole or trazodone, in the equation, there was a statistical significance associated with delirium. Conclusions. The prevalence of delirium in a residential environment in our study population was 11.7%. The results show that BI, diagnosis of dementia, and prescribing of clomethiazole or trazodone were associated with risk of delirium in institutionalised patients (AU)

[Delirium in nursing homes. Prevalence and risk factors]. / Delirium en centros residenciales para personas mayores. Estudio de la prevalencia y los factores asociados.

OBJECTIVES: To study the prevalence of delirium in the residential environment and to analyse the associated clinical, functional and mental factors. MATERIAL AND METHODS: A cross-sectional epidemic study was conducted on a population of elderly persons institutionalised in 2011 in 6 nursing homes in Asturias. Socio-demographic, clinical, functional (Barthel Index [BI]) and mental (Mini-Mental State Examination [MMSE]) variables were collected. Delirium was defined by the Confusion Assessment Method. RESULTS: A total of 505 elderly were included in the study (age 83.30 ± 7.33 years, with 67.70% women), and scores on the MMSE of 17.19 ± 10.35 and a BI score of 55.11 ± 35.82. The prevalence of delirium was 11.70%. On examining the risk of delirium among the studied variables, there was statistical significance when considering: BI, MMSE, dementia, pressure ulcers, or urinary catheter, and the prescribing of clomethiazole, ACTH-I or trazodone. In the analysis of the variables in the logistic regression with BI, diagnosis of dementia, the prescribing of clomethiazole or trazodone, in the equation, there was a statistical significance associated with delirium. CONCLUSIONS: The prevalence of delirium in a residential environment in our study population was 11.7%. The results show that BI, diagnosis of dementia, and prescribing of clomethiazole or trazodone were associated with risk of delirium in institutionalised patients.