Why the study?
Do genetic and environmental factors influence blood pressure levels and its biochemical correlates in black and white populations?
Population
Black and white individuals living in similar and dissimilar environments
Design
Cross-sectional
Key result
Racial and environmental factors influence blood pressure levels, with blacks and whites showing differences in plasma renin activity and plasma noradrenaline concentration.
Authors
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Racial BP differences may reflect distinct mechanisms; hypothesis-generating and should not change practice.
Observational
Do genetic and environmental factors influence blood pressure levels and its biochemical correlates in black and white populations?
Genetic and environmental factors both influence blood pressure, with differing pathogenetic mechanisms (renin and noradrenaline) suggested between black and white populations.
Peter Sever (1981) conducted an observational in Blood pressure. Race (black vs white) and environmental factors was evaluated on Blood pressure levels and biochemical correlates (plasma renin activity and plasma noradrenaline concentration). Racial and environmental factors influence blood pressure levels, with blacks and whites showing differences in plasma renin activity and plasma noradrenaline concentration.