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Hypertension is a key risk factor for cardiovascular (CV) disease, but little is known about CV risk in individuals with high-normal blood pressure that progresses to hypertension. To evaluate this relation, investigators stratified 40,000 healthy participants in the Women’s Health Study into four categories according to BP: optimal (<120/75 mm Hg), normal (120/75–129/84 mm Hg), high normal (130/85–139/89 mm Hg), and hypertension (≥140/90 mm Hg). During a 10-year follow-up, women reported BP, incident hypertension, and occurrence of CV events (myocardial infarction, stroke, or coronary revascularization). Event rates in the four BP categories were compared; multivariate analysis was adjusted for covariates such as age, smoking, diabetes, BM…