Prevalence, associated factors, and prognostic impact of delirium in advanced cancer patients in acute palliative care units: a prospective observational study.

The hypoactive subtype was predominant, and reversibility was observed in 16%.

Advanced age and poor functional status were significant predisposing factors, while infection, insomnia, fever, dehydration, immobility, and hypoglycemia were associated conditions.

In unadjusted analyses, delirium was associated with increased mortality (HR = 1.51; 95%CI 1.19-1.92; p < 0.001).

However, this association did not remain statistically significant after multivariable adjustment (adjusted HR = 1.28; 95%CI 0.98-1.66; p = 0.068).