Morbidity and mortality in untreated and treated hypertension: results from the Göteborg 50-year-old men study.

Total mortality, and mortality and morbidity from myocardial infarction, have been followed in one-thrid (n = 855) of a totoal male population from the age of 50 to the age of 60. An initial screening examination was performed in 1963 when the participants were 50 years old. Mortality data were gathered from death certificates and autopsies. Fatal and non-fatal myocardial infarction was followed by means of an infarction register. The participants were divided into four groups according to blood pressure in 1963 and the mortality and morbidity data in these 4 groups were compared with those who had been on antihypertensive treatment from 1963 to 1973.