Ontology highlight
ABSTRACT:
SUBMITTER: Sofer T
PROVIDER: S-EPMC6416071 | biostudies-literature | 2019 Apr
REPOSITORIES: biostudies-literature
Sofer Tamar T Zheng Xiuwen X Gogarten Stephanie M SM Laurie Cecelia A CA Grinde Kelsey K Shaffer John R JR Shungin Dmitry D O'Connell Jeffrey R JR Durazo-Arvizo Ramon A RA Raffield Laura L Lange Leslie L Musani Solomon S Vasan Ramachandran S RS Cupples L Adrienne LA Reiner Alexander P AP Laurie Cathy C CC Rice Kenneth M KM
Genetic epidemiology 20190117 3
When testing genotype-phenotype associations using linear regression, departure of the trait distribution from normality can impact both Type I error rate control and statistical power, with worse consequences for rarer variants. Because genotypes are expected to have small effects (if any) investigators now routinely use a two-stage method, in which they first regress the trait on covariates, obtain residuals, rank-normalize them, and then use the rank-normalized residuals in association analys ...[more]