Abstract Objective To analyze the relationship between the social vulnerability index and physical frailty condition and delirium in hospitalized older adults. Methods Cross-sectional analytical study of older adults developed in a hospital in southern Brazil. The collection instruments used were a sociodemographic questionnaire, the social vulnerability index, physical frailty phenotype markers and the Confusion Assessment Method. Descriptive and inferential statistics were used. Results Of the 305 older adults evaluated, 59.4% were female, 40.9% were aged over 80 years and 92.6% had morbidities. There was an association between hospitalization and female sex with low and medium vulnerability (64.8%; 95%CI 55.9-72.7 and 63%; 95%CI 53.2-71.8, respectively, with p=0.0262) . Delirium was observed in 29.5% (95%CI 22.3-38.4) of older adults over 60 years of age with low vulnerability, 17% (10.9-25.5) medium, 14.5% ( 8.6-23.9) high, with p=0.0151. There was no association between delirium and the vulnerability index in older adults aged over 80 years, with p=0.235. Delirium affected 44.3% (32.5-56.7) of older adults with low vulnerability, 35% (22.1-50.5) with medium and 25% (12-44.9) high. There was no association between frailty and social vulnerability, with p=0.927. Among older adults aged 80 years or over, frail people prevailed in the three vulnerability strata (low 59.7%; medium 57.5% and high 56%), p=0.788. Conclusion Hospitalization and delirium were associated with younger, pre-frail women from low and medium social vulnerability. The condition of frailty did not correlate with social vulnerability. The need to better understand the biopsychosocial factors that can increase delirium in hospitalized older adults with low social vulnerability is highlighted.

Maria Helena Lenardt

Clovis Cechinel

João Alberto Martins Rodrigues

Daiane Maria da Silva Marques

José Baudilio Belzarez Guedez

Maria Angélica Binotto

Acta Paulista de Enfermagem

ACTA PAULISTA DE ENFERMAGEM – (ACTA PAUL ENFERM.), ISSN 1982-0194, 是 ESCOLA PAULISTA DE ENFERMAGEM – EPE, UNIVERSIDADE FEDERAL DE SÃO PAULO – UNIFESP. 我们的使命：传播在严谨的研究和伦理方法论中产生的科学知识。我们的目标：发表原创研究成果，以促进临床、外科和管理护理以及教育、研究和信息和通信技术的实践。

ACTA Paulista de Enfermagem (ACTA PAUL ENFERM.) is a journal published by the Escola Paulista de Enfermagem (EPE), Federal University of São Paulo (UNIFESP), ISSN 1982-0194. Our mission is to disseminate scientific knowledge generated through rigorous research and ethical methodologies. Our goal is to publish original research findings to enhance the practice of clinical, surgical, and management nursing, as well as to promote education, research, and information and communication technologies.

《ACTA Paulista de Enfermagem》（ACTA PAUL ENFERM.）是由圣保罗大学护理学院（Escola Paulista de Enfermagem, EPE）出版的期刊，ISSN 1982-0194。我们的使命是传播通过严谨的研究和伦理方法论所产生的科学知识。我们的目标是发表原创研究成果，以促进临床、外科和管理护理的实践，同时推动教育、研究以及信息和通信技术的发展。

Category	Quartile
医学	4
医学, 护理	4

Social vulnerability index, physical frailty and delirium in hospitalized older adults

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