Key result
Higher 24-hour urinary sodium was associated with a 3.14 mm Hg higher systolic and 0.14 mm Hg higher diastolic blood pressure per 100 mmol increase after adjustment for body mass index.
Why the study?
Does body mass index modify the association of urinary sodium and potassium with blood pressure?
Observational
Yes
Does body mass index modify the association of urinary sodium and potassium with blood pressure?
Mean Difference: 3.14
BMI partially confounds the relationship between sodium intake and blood pressure, but a significant independent association between sodium, potassium, and blood pressure persists regardless of BMI.
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Sodium-BP association persists after BMI adjustment; extends observational data but leaves causality open.
Dyer et al. (1994) conducted an observational in Blood pressure. 24-hour urinary sodium, potassium, and sodium-potassium ratio was evaluated on Systolic and diastolic blood pressure (MD 3.14 mm Hg (systolic) and 0.14 mm Hg (diastolic) per 100 mmol higher sodium). Higher 24-hour urinary sodium was associated with a 3.14 mm Hg higher systolic and 0.14 mm Hg higher diastolic blood pressure per 100 mmol increase after adjustment for body mass index.
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