The<unk>  was a 1988 international observational study which investigated the link between dietary salt, as measured by urinary excretion, and blood pressure. The study was based on a sample of 10,079 men and women aged 20–59 sampled from 52 populations around the world. The authors of the study attempted to provide a widespread international investigation of the correlation between dietary salt intake and blood pressure in a systematic and standardized way with regards for relevant confounding variables, beyond just age and sex.
Intersalt study
Parallel study
Natural history study
Mixing study
Subgroup analysis
Agent study
Confirmatory trial
Solidarity trial