APOB and cancer: Total effects of self‐reported family history and a 50‐variant GRS (GRS50), as well as effects mediated by apolipoprotein B and A‐I (apoB, apoA‐I), blood pressure, and diabetes mellitus, on incidence of CHD were estimated in 23 595 participants of the Malmö Diet and Cancer study (a prospective, population‐based study).