Impact of elevated blood pressure on mortality from all causes, cardiovascular diseases, heart disease and stroke among Japanese: 14 year follow-up of randomly selected population from Japanese -- Nippon data 80.

The objectives of the study were to clarify the relationship between blood pressure and mortality from stroke, heart disease, cardiovascular diseases and all causes of death among representative population of Japanese and to estimate category-specific excess mortality from stroke due to blood pressure (BP) level. The study design comprised a retrospective cohort study using the 1980 National Survey on Cardiovascular Diseases and identification of underlying causes of death using national vital statistics data. In 1994, a 14-year follow-up cohort study was conducted among participants of the National Survey on Cardiovascular Diseases in 1980, randomly selected from the Japanese population.