Delirium and geriatric syndromes in hospitalized older patients: Results from World Delirium Awareness Day

Abstract

Objective: To determine the point prevalence of delirium and the associated risk factors in geriatric inpatients. Patients and Methods: Sixty-two hospitalized patients aged 60 years and over were recruited. The Mini Nutritional Assessment-Short Form (MNA-SF), the FRAIL scale, Katz Activities of Daily Living (ADL), and Lawton-Brody Instrumental ADL (IADL) questionnaires were administered. A delirium evaluation test (Confusion Assessment Method-CAM) was performed for diagnosing delirium. Mortality was evaluated one month after the index date. Results: The median age was 71.5 (range, 60-96) years. Delirium was detected in 29% of the patients. Frailty and dementia were associated with delirium (p<0.001 and p=0.001; respectively). Polypharmacy, indwelling urinary catheter, and low albumin were also related to delirium (p=0.025, p=0.007, and p=0.002; respectively). Age over 70 years, low Katz ADL and low MNA-SF scores were found to be independently associated with delirium in multivariate regression analysis models. The median hospitalization time was longer in the delirium group (p=0.029). Survival analysis at one month showed no significant difference between the delirium and non-delirium groups. Conclusion: Age over 70 years, impaired functionality in ADL and malnutrition were independently associated with delirium.