Cousin regularity distribution away from (a) SBP changes, (Gaussian complement Roentgen 2 getting sodium https://datingranking.net/vietnamese-dating/ painful and sensitive = 0.74 and you may salt resistant = 0.97) and (b) urinary Na + /K + , (Gaussian fit Roentgen dos for salt sensitive and painful = 0.99 and you will sodium unwilling some one = 0.99) on the gang of sodium sensitive and painful (n = 71) and sodium resistant (n = 119) people with change of fat loss input of Weight reduction Ways to Stop Blood pressure level (DASH) highest salt (HS) diet plan to help you Dash lower sodium (LS) eating plan.
Certainly data users analyzed, 53% of SR and 62% of your SS players was indeed female, 51% out-of SR and you can 63% regarding SS people was indeed African-American (Table 1). More members were aged 30–55 age, college-educated, and you will employed full-time. There are no tall differences in baseline features to possess studies professionals round the ethnicity otherwise sex in both the brand new SS otherwise SR organizations (Dining table 1).
Baseline SBP, assessed during the screening visit prior to dietary intervention was significantly higher in SS (137.6 ± 8.7 mmHg) vs. SR participants (132.5 ± 9.6 mmHg; p < 0.05, Table 2). In contrast there was no significant difference in 24 h urinary Na + excretion, 24 h urinary K + excretion and the urinary Na + :K + ratio between SS and SR participants at screening (Table 2). Further, there was no significant effect of sex or ethnicity on these variables, as such subsequent analyses were not adjusted for age or ethnicity. In SS, but not SR participants, each additional g/day in urinary Na + excretion across the range of <2 g/day to 5 g/day resulted in a higher SBP value of approximately 1.0 ± 0.4 mmHg in SBP/g Na + excretion (Fig. 2a). The measures >5 g/day Na+ were not included due to increased sample variability. When assessed by linear regression across the entire range of observed Na + excretion we observed no correlation between urinary Na + excretion and SBP in either SS (R 2 = 0.02) or SR (R 2 = 0.02) participants (Fig. 2b). In both SS and SR participants urinary K + excretion of <1 g/day elevated SBP by 3.9 and 4.8 mmHg respectively vs. SBP values obtained for urinary excretion of 1–1.99gK + /day (Fig. 3a) and the Cohen's D score for the difference in the SBP among the participants with less than 1 g/day versus 1-1.9 g/day of urinary K + excretion showed a medium effect size in both SS (0.45) and the SR (0.49) group. However, when assessed across the entire range of observed K + excretion we observed no correlation between K + excretion and SBP in either SS (R 2 = 0.001) or SR (R 2 = 0.008) participants (Fig. 3b). Further, we observed no association between the urinary Na + :K + ratio and SBP and no impact of urinary K + excretion across any dietary Na + excretion range on SBP in either SS (R 2 = 0.004) or SR (R 2 = 0.002) participants (Fig. 4a, b).
Effect from Dash diet on the relationship away from urinary sodium in order to potassium removal proportion that have SBP
Within the sub group of SS participants randomly assigned to DASH-Sodium dietary intervention arm (N = 71) there was a significant (p < 0.05) reduction in SBP on the DASH-LS diet compared to the baseline screening SBP value (Table 3). In the sub group of SR participants randomly assigned to the DASH-Sodium intervention (N = 119) there were significant (p < 0.05) reductions in SBP on both the DASH-HS and DASH-LS diets compared to the baseline screening SBP value (Table 3). On the DASH-Sodium diet, following both the LS and HS interventions compared to screening there was a significant (p < 0.05) increase in urinary K + excretion and reduction in the urinary Na + :K + ratio (that was greater during the LS intervention), in both SS and SR participants (Table 3).