Fig. 1: Loadings and variance explained for the five principal component (PC)-based composite sleep health scores (SHS).
From: Genome-wide association analysis of composite sleep health scores in 413,904 individuals
a SHS-PC loadings on self-reported sleep phenotypes. Interpretation of higher SHS-PC scores, based on loadings, are: PC1—longer sleep with less-frequent insomnia and lower sleepiness; PC2—absence of snoring and lower sleepiness; PC3—morningness chronotype; PC4—presence of snoring and less frequent sleepiness; PC5—shorter sleep and less-frequent insomnia. Radar plots display loading magnitudes (radial distance). Red dots: positive loadings; Blue dots: negative loadings. b Percent of the phenotypic variance explained by each sleep health score. SHS sleep health score, PC principal component.
