Forskning ved Københavns Universitet - Københavns Universitet

Forside

Duration of preclinical, prodromal, and dementia stages of Alzheimer's disease in relation to age, sex, and APOE genotype

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningfagfællebedømt

  • Alzheimer Disease Neuroimaging Initiative
  • AIBL Research Group
  • ICTUS/DSA study groups

Introduction: We estimated the age-specific duration of the preclinical, prodromal, and dementia stages of Alzheimer's disease (AD) and the influence of sex, setting, apolipoprotein E (APOE) genotype, and cerebrospinal fluid tau on disease duration. Methods: We performed multistate modeling in a combined sample of 6 cohorts (n = 3268) with death as the end stage and estimated the preclinical, prodromal, and dementia stage duration. Results: The overall AD duration varied between 24 years (age 60) and 15 years (age 80). For individuals presenting with preclinical AD, age 70, the estimated preclinical AD duration was 10 years, prodromal AD 4 years, and dementia 6 years. Male sex, clinical setting, APOE ε4 allele carriership, and abnormal cerebrospinal fluid tau were associated with a shorter duration, and these effects depended on disease stage. Discussion: Estimates of AD disease duration become more accurate if age, sex, setting, APOE, and cerebrospinal fluid tau are taken into account. This will be relevant for clinical practice and trial design.

OriginalsprogEngelsk
TidsskriftAlzheimer's and Dementia
Vol/bind15
Udgave nummer7
Sider (fra-til)888-898
ISSN1552-5260
DOI
StatusUdgivet - jul. 2019

ID: 241827591