Extended Data Fig. 4: Principal component analysis (PCA) plots.
From: Adeno-associated virus 2 infection in children with non-A–E hepatitis

PCA plots showing the first four genome-wide principal components to confirm genetic ancestry matching. a) Genomic PCA using full United Kingdom Biobank cohort as background population (grey), showing the subgroup of unrelated United Kingdom Biobank participants who were born in Scotland and of Caucasian ancestry (blue) and the hepatitis cases reported here (red). b) plots showing only the subgroup born in Scotland and of Caucasian ancestry.