Association of polyunsaturated fatty acid intake from either eicosapentaenoic acid (A and B) or docosahexaenoic acid (C and D) with pulse wave velocity stratified by different genotypes of FADS1 rs174547 after estimation with linear regression adjusted for sex and age (Model 0) and sex, age, body mass index, and systolic blood pressure (Model 1). Solid blue lines represent homozygous for the minor allele (CC), and dotted orange lines represent heterozygous (CT) and scattered grey lines represent homozygous for the major allele (TT) (all interactions are non-significant—N = 1464).