Key result
In US adults without a history of hypertension, higher dietary sodium intake was not associated with an increased risk of elevated blood pressure >140/90 mm Hg (adjusted OR 0.98, 95% CI 0.71-1.37).
Why the study?
Does dietary sodium and potassium intake affect blood pressure levels in US adults with no prior history of hypertension?
Cross-Sectional (n=6,985)
Does dietary sodium and potassium intake affect blood pressure levels in US adults with no prior history of hypertension?
In US adults without a prior history of hypertension, dietary sodium and potassium intake levels were not associated with elevated blood pressure.
No association seen in normotensives; leaves open sodium's role in primary prevention and requires prospective studies.
The relationship between dietary sodium and potassium intake with elevated blood pressure (BP) levels is unclear. The authors examined the association between dietary sodium and potassium intake and BP levels in 6985 adults aged 18 years and older with no prior history of hypertension who participated in the National Health and Nutrition Examination Survey (2001-2006). After adjustment for age, sex, race, body mass index, diabetes, and estimated glomerular filtration rate, there was no association between higher quartiles of sodium or potassium intake with the risk of a BP >140/90 mm Hg or >130/80 mm Hg. There was also no relationship between dietary sodium and potassium intake with BP when systolic and diastolic BP were measured as continuous outcomes (P=.68 and P=.74, respectively). Furthermore, no association was found between combinations of sodium and potassium intake with elevated BP. In the US adult population without hypertension, increased dietary sodium or low potassium intake was not associated with elevated BP levels.
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Sharma et al. (2014) conducted a cross-sectional in No prior history of hypertension (n=6,985). High dietary sodium intake vs. Low dietary sodium intake (lowest quartile) was evaluated on Elevated blood pressure >140/90 mm Hg (OR 0.98, 95% CI 0.71-1.37). In US adults without a history of hypertension, higher dietary sodium intake was not associated with an increased risk of elevated blood pressure >140/90 mm Hg (adjusted OR 0.98, 95% CI 0.71-1.37).
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