Delirium Predisposing and Triggering Factors in Nursing Home Residents: A Cohort Trial-Nested Case-Control Study.

Background Delirium is a common geriatric syndrome, with a prevalence of between 15-70% among older long-term care residents. It is associated with adverse outcomes, and its onset may prove imperceptible to health professionals. Few studies in institutionalized older people have analyzed the predictors of delirium. Objective The aim of the present study was to identify delirium predisposing and triggering factors, and develop a predictive model. Methods A cohort trial-nested case-control study covering a period of 12 consecutive months (April 2015 - March 2016) was carried out. Predisposing and triggering episodes of delirium were recorded. Results A total of 443 older persons were recruite…