Table 2.
Daily salt intake (as NaCl) during intervention.
| Smart Salt® (n = 22) Mean (SD) |
Regular salt (n = 23) Mean (SD) |
p-value | |
|---|---|---|---|
| Daily NaCl intake during intervention (calculated from product diaries) (grams) | 5.3 (1.6) | 8.5 (2.0) | p < 0.0011 |
| Daily NaCl intake calculated from dU-Na (grams) | |||
| Visit 3 (-1 day) | 8.8 (3.2) | 10.2 (2.9) | NS2 |
| Visit 6 (+8 weeks) | 6.8 (3.3) | 10.1 (3.1) | p < 0.0022 |
| p-value3 | p = 0.012 | NS | |
| Changes in daily NaCl intake during intervention calculated from dU-Na | |||
| grams | -2.0 (3.6) | -0.1 (2.8) | NS (p = 0.050)4 |
| % | -18.5 (28.8) | 3.1 (34.7) | p = 0.0331 |
| Changes in daily NaCl intake during intervention calculated from baseline dU-Na and NaCl intake calculated from diaries | |||
| grams | -3.5 (2.9) | -1.7 (3.7) | NS1 |
| % | -35.1 (21.6) | -7.8 (40.0) | p = 0.0071 |
1 Indicates the significance of difference between the groups analyzed with Mann-Whitney test.
2 Indicates the significance of difference between the groups analyzed with Mann-Whitney test with Bonferroni corrections.
3 Indicates the significance of difference within the group analyzed with Wilcoxon test with Bonferroni corrections.
4 Indicates the significance of difference between the groups analyzed with independent samples t-test.
P-values < 0.05 are considered as statistically significant.
NS = non-significant