Features of your own Studies Members
The characteristics of the 102,216 participants are shown in Table 1 , and in Tables S2 and S3 in the Supplementary Appendix. Mean sodium excretion was estimated to be 4.93±1.73 g, and mean potassium excretion was estimated to be 2.12±0.60 g, with higher excretion in men than in women (P<0.001 for sodium and potassium).
Activities from Salt and you will Potassium Removal
Noticed removal from one smooth day pee specimen and you will projected “usual” removal (once changes to have regression dilution prejudice) are given. To possess seen excretion, the fresh mean (±SD) sodium excretion was cuatro.93±1.73 grams per day; 3.3% away from players got sodium removal regarding below dos.31 g a day, and 0.6% away from players had salt removal out of below 1.50 g daily. Getting projected common excretion, brand new indicate salt removal is actually cuatro.90±step 1.17 grams per day; 0.2% away from users had salt excretion out-of below dos.30 g just about every day, and you may nothing got salt removal regarding less than step 1.fifty grams every single day.
Overall, 43.5% of the population had an estimated sodium excretion of more than 5 g per day, 45.9% between 3 and 5 g per day, and 10.6% less than 3 g per day (3.3% had an excretion <2.3 g per day, and 0.6% <1.5 g per day). After adjustment for regression dilution bias, 2.1% of participants had an estimated sodium excretion of less than 3 g per day, and only 0.2% had excretion of less than 2.3 g per day ( Figure 1A ). Overall, 7.9% of participants had an estimated potassium excretion of more than 3 g per day ( Figure 1B ).
Estimated sodium excretion was higher in rural areas than in urban areas (P<0.001), whereas estimated potassium excretion was higher in urban areas (P<0.001) (Tables S2 and S3 in the Supplementary Appendix). Per capita gross national income was inversely associated with estimated sodium excretion and positively associated with estimated potassium excretion (P<0.001 for trends). Mean estimated sodium excretion ranged from 3.78 g per day in Malaysia to 5.59 g per day in China. Mean estimated potassium excretion ranged from 1.70 g per day in South Asia (Bangladesh, India, and Pakistan) to 2.46 g per day in Canada and Europe (Poland and Sweden).
Urinary Sodium Removal and you may Blood pressure level
Changes in blood pressure level get having sodium excretion out of less than step three grams each and every day, excretion off three to five g each and every day https://datingranking.net/pl/joingy-recenzja/, and you may excretion in excess of 5 grams per day. People that have extremely reasonable otherwise extremely high salt removal are included regarding the figure. In Asia, 218 individuals having removal out-of below 2 g a-day was indeed within the category that have removal off 2.00 so you can dos.99 g every day, and you can 482 persons that have excretion of more than 11 g for every go out had been as part of the class having removal out-of grams or much more every single day. Far away, 235 individuals that have excretion off nine.00 to nine.99 g each day and you may 112 people which have excretion from ten grams or higher everyday were as part of the classification which have removal regarding 8.00 to eight.99 g per day. I pubs mean 95% depend on periods.
After adjusting for covariates, we found a significant positive association between estimated sodium excretion and systolic blood pressure (P<0.001 for trend) and between estimated sodium excretion and diastolic blood pressure (P<0.001 for trend) ( Figure 2A and 2B ). For each 1-g increment in estimated sodium excretion, there was an increment of 1.46 mm Hg in systolic blood pressure (P<0.001) and an increment of 0.54 mm Hg in diastolic blood pressure (P<0.001). After correcting for regression dilution bias and adjusting for covariates, we observed a steeper slope (a larger increment in blood pressure for a 1-g increment in estimated sodium excretion) for the association between estimated usual sodium excretion and blood pressure, with an increment of 2.11 mm Hg in systolic blood pressure per gram and an increment of 0.78 mm Hg in diastolic blood pressure per gram (P<0.001 for both comparisons).