title: Trends, Predictors, and Outcomes of Healthcare Resources Used in Patients Hospitalized with Alzheimer's Disease with at Least One Procedure: The Nationwide Inpatient Sample.
abstract: We assessed trends, predictors and outcomes of resource utilization in hospital inpatient discharges with a principal diagnosis of Alzheimer's disease (AD) with at least one procedure. Using Nationwide Inpatient Sample data (NIS, 2002-2012), discharges primarily diagnosed with AD, aged ≥60 y and with ≥1 procedure, were selected (Weighted N = 92,300). Hospital resource utilization were assessed using ICD-9-CM codes, while hospitalization outcomes included total charges (TC, 2012$), length of stay (LOS, days), and mortality risk (MR, %). Brain and respiratory/gastrointestinal procedure utilization both dropped annually by 3-7%, while cardiovascular procedures/evaluations, blood evaluations, blood transfusion, and resuscitation ("CVD/Blood") as well as neurophysiological and psychological evaluation and treatment ("Neuro") procedures increased by 5-8%. Total charges, length of stay, and mortality risk were all markedly higher with use of respiratory/gastrointestinal procedures as opposed to being reduced with use of "Brain" procedures. Procedure count was positively associated with all three hospitalization outcomes. In sum, patterns of hospital resources that were used among AD inpatients changed over-time, and were associated with hospitalization outcomes such as total charges, length of stay, and mortality risk.
authors.affiliation: National Institute on Aging, NIA/NIH/IRP, Baltimore, MD, USA.
authors.forename: May A
authors.initials: MA
authors.lastname: Beydoun
authors.affiliation: National Institute on Aging, NIA/NIH/IRP, Baltimore, MD, USA.|Human development and Family Studies, Penn State University, State College, PA, USA.
authors.forename: Alyssa A
authors.initials: AA
authors.lastname: Gamaldo
authors.affiliation: Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
authors.forename: Hind A
authors.initials: HA
authors.lastname: Beydoun
authors.affiliation: National Institute on Aging, NIA/NIH/IRP, Baltimore, MD, USA.|Department of Psychology, University of Maryland, Baltimore County, Catonsville, MD, USA.
authors.forename: Danielle
authors.initials: D
authors.lastname: Shaked
authors.affiliation: National Institute on Aging, NIA/NIH/IRP, Baltimore, MD, USA.
authors.forename: Alan B
authors.initials: AB
authors.lastname: Zonderman
authors.affiliation: Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
authors.forename: Shaker M
authors.initials: SM
authors.lastname: Eid
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D000544:Alzheimer Disease / Q000000981:diagnostic imaging / Q000628:therapy*; D005260:Female; D006295:Health Resources / Q000639:trends*; D006760:Hospitalization / Q000706:statistics & numerical data; D006801:Humans; D007297:Inpatients; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D009017:Morbidity; D017063:Outcome Assessment, Health Care; D011237:Predictive Value of Tests; D014481:United States
keywords: Alzheimer’s disease; healthcare resource utilization; hospital inpatients; hospital procedures; hospitalization outcomes