The associations of stearic acid did not differ by age at diagnosis, years from blood collection to diagnosis, year of diagnosis, stage of disease, presence of aggressive disease, grade of disease, age at blood draw, PSA concentration at blood draw, university education, BMI, smoking status, alcohol consumption, or family history of prostate cancer (Pheterogeneity > .05) (Supplementary Figure 20, available online). This evidence concerns the gene KLK3 and prostate cancer.