Reassessing the association between age at menarche and cardiovascular disease: observational and Mendelian randomization analyses
Aims Observational studies have shown a U-shaped association between age at menarche (AAM) and cardiovascular disease (CVD). We assessed non-linearity of the observational association and the potential causal relationship between AAM and CVD using data from the European Prospective Investigation into Cancer and Nutrition—Cardiovascular Disease (EPIC-CVD) study and the UK Biobank. Methods and results We…