Key result
Each 1000 mg increase in 24-h urinary sodium excretion was associated with a 0.64 mm Hg higher systolic blood pressure, and each 1000 mg of potassium with a 3.07 mm Hg lower systolic blood pressure.
Why the study?
The direction and magnitude of the association between sodium and potassium excretion and BP may differ based on participant characteristics or intake assessment methods.
Does 24-h urinary sodium and potassium excretion associate with blood pressure and hypertension in Chinese adults?
Cross-Sectional (n=1,424)
Yes
Does 24-h urinary sodium and potassium excretion associate with blood pressure and hypertension in Chinese adults?
Mean Difference: 0.64 (95% CI 0.05–1.24)
p-value: p=<0.05
Higher 24-h urinary sodium excretion is associated with higher blood pressure, while higher potassium excretion is inversely associated with blood pressure, particularly among hypertensive Chinese adults.
Authors
No takes yet. Share an insight, caveat, or question.
May support sodium-potassium monitoring in Chinese hypertensives; cross-sectional design leaves causality open for prospective studies.
Du et al. (2021) conducted a cross-sectional in Hypertension (n=1,424). 24-h urinary sodium and potassium excretion vs. Lower excretion levels was evaluated on Systolic blood pressure change per 1000 mg increase in 24-h urinary sodium excretion (MD 0.64, 95% CI 0.05-1.24, p=<0.05). Each 1000 mg increase in 24-h urinary sodium excretion was associated with a 0.64 mm Hg higher systolic blood pressure, and each 1000 mg of potassium with a 3.07 mm Hg lower systolic blood pressure.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: