The analysis is adjusted having age, sex, body-size index, educational level, alcohol intake, and you will geographic region
Qualities of one’s Studies Players
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).
Patterns of Sodium and you will Potassium Excretion
Seen excretion from one accelerated day pee sample and you will estimated “usual” removal (just after modifications to possess regression dilution prejudice) are offered. To possess noticed excretion, this new imply (±SD) sodium excretion is actually cuatro.93±1.73 g everyday; step three.3% regarding professionals got salt removal regarding less than 2.31 g every day, and you may 0.6% from members got sodium removal regarding less than step 1.fifty grams a day. To przeglÄ…d nudistfriends possess projected typical excretion, the brand new mean sodium excretion try 4.90±step 1.17 grams on a daily basis; 0.2% of professionals got sodium removal out of less than 2.31 grams every day, and you can nothing got sodium excretion regarding below step one.fifty g each and every 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 Salt Removal and you will Hypertension
Alterations in blood pressure are provided getting salt excretion from shorter than just step three g a-day, excretion out of 3 to 5 g every single day, and you can excretion of more than 5 grams on a daily basis. Persons that have extremely reasonable otherwise high salt removal are included regarding shape. Into the China, 218 people with removal out-of lower than dos g daily was as part of the group with excretion out of 2.00 so you’re able to dos.99 grams each day, and you may 482 persons having removal in excess of eleven grams for every single big date were as part of the classification having excretion of g otherwise so much more a day. In other countries, 235 persons which have excretion regarding 9.00 so you’re able to 9.99 g every day and you may 112 individuals having removal out-of ten g or maybe more just about every day was within the classification which have removal out of 8.00 to 8.99 g a-day. I taverns imply 95% count 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).
