Dataset Information
Impact of home visit capacity on genetic association studies of late-onset Alzheimer's disease.
Ontology highlight
ABSTRACT: Introduction
Findings for genetic correlates of late-onset Alzheimer's disease (LOAD) in studies that rely solely on clinic visits may differ from those with capacity to follow participants unable to attend clinic visits.Methods
We evaluated previously identified LOAD-risk single nucleotide variants in the prospective Adult Changes in Thought study, comparing hazard ratios (HRs) estimated using the full data set of both in-home and clinic visits (n = 1697) to HRs estimated using only data that were obtained from clinic visits (n = 1308). Models were adjusted for age, sex, principal components to account for ancestry, and additional health indicators.Results
LOAD associations nominally differed for 4 of 21 variants; CR1 and APOE variants were significant after Bonferroni correction.Discussion
Estimates of genetic associations may differ for studies limited to clinic-only designs. Home visit capacity should be explored as a possible source of heterogeneity and potential bias in genetic studies.
SUBMITTER: Fardo DW
PROVIDER: S-EPMC5554082 | biostudies-literature | 2017 Aug
REPOSITORIES: biostudies-literature
Publications
Impact of home visit capacity on genetic association studies of late-onset Alzheimer's disease.
Alzheimer's & dementia : the journal of the Alzheimer's Association 20170221 8
<h4>Introduction</h4>Findings for genetic correlates of late-onset Alzheimer's disease (LOAD) in studies that rely solely on clinic visits may differ from those with capacity to follow participants unable to attend clinic visits.<h4>Methods</h4>We evaluated previously identified LOAD-risk single nucleotide variants in the prospective Adult Changes in Thought study, comparing hazard ratios (HRs) estimated using the full data set of both in-home and clinic visits (n = 1697) to HRs estimated using ...[more]
