Abstract
Hard data are now accumulating to give substance to the debate, most notably the Intersalt study, the first report of which was published in the BMJ in 1988.3 This cross sectional study of 10 074 men and women with a broad age span was designed to describe the association between urinary excretion of sodium chloride (as a measure of salt intake) and blood pressure. After adjustments for body mass index, alcohol intake, sex, …