title: Pilot study to show the feasibility of a multicenter trial of home-based assessment of people over 75 years old.
abstract: This report describes a pilot study to evaluate feasibility of new home-based assessment technologies applicable to clinical trials for prevention of cognitive loss and Alzheimer disease.
  
  
  METHODS
  Community-dwelling nondemented individuals >or=75 years old were recruited and randomized to 1 of 3 assessment methodologies: (1) mail-in questionnaire/ live telephone interviews (MIP); (2) automated telephone with interactive voice recognition (IVR); and (3) internet-based computer Kiosk (KIO). Brief versions of cognitive and noncognitive outcomes were adapted to the different methodologies and administered at baseline and 1-month. An Efficiency measure, consisting of direct staff-to-participant time required to complete assessments, was also compared across arms.
  
  
  RESULTS
  Forty-eight out of 60 screened participants were randomized. The dropout rate across arms from randomization through 1-month was different: 33% for KIO, 25% for IVR, and 0% for MIP (Fisher Exact Test P=0.04). Nearly all participants who completed baseline also completed 1-month assessment (38 out of 39). The 1-way ANOVA across arms for total staff-to-participant direct contact time (ie, training, baseline, and 1-month) was significant: F (2,33)=4.588; P=0.017, with lowest overall direct time in minutes for IVR (Mn=44.4; SD=21.5), followed by MIP (Mn=74.9; SD=29.9), followed by KIO (Mn=129.4; SD=117.0).
  
  
  CONCLUSIONS
  In this sample of older individuals, a higher dropout rate occurred in those assigned to the high-technology assessment techniques; however, once participants had completed baseline in all 3 arms, they continued participation through 1 month. High-technology home-based assessment methods, which do not require live testers, began to emerge as more time-efficient over the brief time of this pilot, despite initial time-intensive participant training.
authors.affiliation: Mount Sinai School of Medicine, New York, USA. mary.sano@mssm.edu
authors.forename: Mary
authors.initials: M
authors.lastname: Sano
authors.forename: Susan
authors.initials: S
authors.lastname: Egelko
authors.forename: Steven
authors.initials: S
authors.lastname: Ferris
authors.forename: Jeffrey
authors.initials: J
authors.lastname: Kaye
authors.forename: Tamara L
authors.initials: TL
authors.lastname: Hayes
authors.forename: James C
authors.initials: JC
authors.lastname: Mundt
authors.forename: Michael
authors.initials: M
authors.lastname: Donohue
authors.forename: Sarah
authors.initials: S
authors.lastname: Walter
authors.forename: Shelly
authors.initials: S
authors.lastname: Sun
authors.forename: Luis
authors.initials: L
authors.lastname: Sauceda-Cerda
mesh_terms: D000368:Aged; D000544:Alzheimer Disease / Q000175:diagnosis* / Q000523:psychology; D002986:Clinical Trials as Topic / Q000379:methods; D006801:Humans; D007407:Interviews as Topic; D015337:Multicenter Studies as Topic / Q000379:methods*; D009483:Neuropsychological Tests; D010865:Pilot Projects; D019114:Remote Consultation / Q000295:instrumentation / Q000379:methods; D011795:Surveys and Questionnaires; D013673:Technology Assessment, Biomedical; D013689:Telephone; D014584:User-Computer Interface