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Intensive Care Unit (ICU) - Managed Elderly Hospitalizations with Dementia in Texas, 2001–2010: A Population-Level Analysis

Lavi Oud

(Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, Texas Tech University Health Sciences Center at the Permian Basin, Odessa, TX, USA)

Med Sci Monit 2016; 22:3849-3859

DOI: 10.12659/MSM.897760

BACKGROUND: The demand for critical care services among elderly with dementia outpaces that of their non-dementia elderly counterparts. However, there are scarce data on the corresponding attributes among ICU-managed patients with dementia.
MATERIAL AND METHODS: We used the Texas Inpatient Public Use Data File to examine temporal trends of the demographics, burden of comorbidities, measures of severity of illness, use of healthcare resources, and short-term outcomes among hospitalizations aged 65 years or older with a reported diagnosis of dementia, who were admitted to ICU (D-ICU hospitalizations) between 2001 and 2010. Average annual percent changes (AAPC) were derived.
RESULTS: D-ICU hospitalizations (n=276,056) had increasing mean (SD) Charlson comorbidity index [1.7 (1.5) vs. 2.6 (1.9)], with reported organ failure (OF) nearly doubling from 25% to 48.5%, between 2001–2001 and 2009–2010, respectively. Use of life support interventions was infrequent, but rose in parallel with corresponding changes in respiratory and renal failure. Median total hospital charges increased from $26,442 to $36,380 between 2001–2002 and 2009–2010. Routine home discharge declined (–5.2%/year [–6.2%– –4.1%]) with corresponding rising use of home health services (+7.2%/year [4.4–10%]). Rates of discharge to another hospital or a nursing facility remained unchanged, together accounting for 60.4% of discharges of hospital survivors in 2010. Transfers to a long-term acute care hospital increased 9.2%/year (6.9–11.5%). Hospital mortality (7.5%) remained unchanged.
CONCLUSIONS: Elderly D-ICU hospitalizations have increasing comorbidity burden, with rising severity of illness, and increasing use of health care resources. Though the majority survived hospitalization, most D-ICU hospitalizations were discharged to another facility.

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