Intersalt study
Intersalt Study
The Intersalt Study (pronounced: in-ter-salt stuh-dee) is a significant epidemiological research project that was conducted to investigate the relationship between sodium intake, specifically in the form of dietary salt, and blood pressure across different populations worldwide.
Etymology
The term "Intersalt" is a portmanteau of "international" and "salt", reflecting the global scope of the study and its focus on salt intake.
Overview
The Intersalt Study was a large-scale, international cooperative study on the correlation between sodium chloride (table salt) intake and blood pressure. Conducted in the late 1980s, the study involved over 10,000 men and women from 32 countries. The study's findings suggested a positive correlation between high sodium intake and elevated blood pressure, a major risk factor for cardiovascular disease and stroke.
Methodology
The Intersalt Study used a cross-sectional design, collecting data from each participant at a single point in time. The study measured 24-hour urinary sodium and potassium excretion, body mass index (BMI), alcohol consumption, and other lifestyle factors. Blood pressure was measured using standard protocols.
Findings
The Intersalt Study found a significant positive association between sodium intake and blood pressure. The study also found that populations with low sodium intake had fewer cases of hypertension. However, the relationship between sodium intake and blood pressure was not linear, suggesting that other factors, such as genetics and lifestyle, also play a role in determining blood pressure levels.
Related Terms
See Also
External links
- Medical encyclopedia article on Intersalt study
- Wikipedia's article - Intersalt study
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