Table 5.
Mean sodium (Na) excretion measured by 24-h urine and estimated by spot urine in 232 men and 243 women in the seventh wave of the Tromsø study 2015–2016.
| Men, Na (mmol/24-h) | Women, Na (mmol/24-h) | |||
|---|---|---|---|---|
| Mean | Median | Mean | Median | |
| 24-h urine | 179.5 | 168.6 | 129.6 | 122.0 |
| INTERSALT, spot urine 1 | 186.5 | 185.4 | 128.2 | 124.7 |
| Toft, spot urine 2 | 195.2 | 194.1 | 133.4 | 133.2 |
| Tanaka, spot urine 3 | 161.8 | 160.3 | 154.6 | 152.4 |
1p-value for difference, compared to 24-h urine (mean excretion): p = 0.07 in men and p = 0.59 in women 2 p-value for difference, compared to 24-h urine (mean excretion): p < 0.001 in men p = 0.15 in women 3 p-value for difference, compared to 24-h urine (mean excretion): p < 0.001 in men p < 0.001 in women.