Table 2.
Data from 24-h urine samples and 3-d diet records of participants
| Parameters | Total (n 114) | Men (n 51) | Women (n 63) | P value* | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mean | sd | n | % | Mean | sd | n | % | Mean | sd | n | % | ||
| 24-h urine samples | |||||||||||||
| Na excretion, mg/d | 2876·6 | 1249·4 | 3081·5 | 1437·3 | 2710·7 | 1056·6 | 0·128 | ||||||
| Na excretion <2000 mg/d† | 27 | 23·7 | 11 | 21·6 | 16 | 25·4 | 0·633 | ||||||
| Salt intake, g/d | 7·3 | 3·2 | 7·8 | 3·7 | 6·9 | 2·7 | 0·128 | ||||||
| Compliance with recommended salt intake | |||||||||||||
| <5 g/d† | 26 | 22·8 | 10 | 19·6 | 16 | 25·4 | 0·464 | ||||||
| <6 g/d‡ | 39 | 34·2 | 15 | 29·4 | 24 | 38·1 | 0·331 | ||||||
| K excretion, mg/d | 1915·3 | 673·3 | 1958·7 | 713·6 | 1880·2 | 642·4 | 0·538 | ||||||
| K intake, mg/d | 2489·9 | 875·3 | 2546·3 | 927·7 | 2444·2 | 835·2 | 0·538 | ||||||
| K intake ≥3510 mg/d† | 10 | 8·8 | 4 | 7·8 | 6 | 9·5 | 1·000 | ||||||
| Na to K ratio | 2·7 | 1·3 | 2·8 | 1·3 | 2·7 | 1·3 | 0·653 | ||||||
| Na to K ratio <1† | 7 | 6·1 | 3 | 5·9 | 4 | 6·3 | 1·000 | ||||||
| Creatinine excretion, mg/d | 1017·6 | 330·4 | 1261·0 | 321·7 | 820·6 | 165·5 | <0·001 | ||||||
| Urine volume, l/d | 2·1 | 0·8 | 2·1 | 0·7 | 2·2 | 0·8 | 0·652 | ||||||
| Diet records | |||||||||||||
| Salt taste preference | 0·300 | ||||||||||||
| Not salty | 40 | 38·1 | 19 | 43·2 | 21 | 34·4 | |||||||
| Slightly salty | 64 | 61·0 | 24 | 54·5 | 40 | 65·5 | |||||||
| Salty | 1 | 1·0 | 1 | 2·3 | 0 | 0·0 | |||||||
| Na intake, mg/d | 3468·9 | 921·8 | 3517·8 | 925·4 | 3429·2 | 924·5 | 0·612 | ||||||
| Na intake, mg/1000 kcal | 1830·9 | 477·2 | 1667·4 | 397·7 | 1963·2 | 497·8 | 0·001 | ||||||
| Salt intake, g/d | 8·7 | 2·3 | 8·8 | 2·3 | 8·5 | 2·3 | 0·553 | ||||||
| Na intake contributed by condiments, mg/d | 1429·9 | 394·9 | 1402·1 | 394·4 | 1452·5 | 397·0 | 0·501 | ||||||
| Salt intake contributed by condiments, g/d | 3·6 | 1·0 | 3·5 | 1·0 | 3·6 | 1·0 | 0·501 | ||||||
| K intake, mg/d | 2257·5 | 682·0 | 2373·8 | 644·5 | 2163·4 | 701·8 | 0·102 | ||||||
| K intake, mg/1000 kcal | 1169·4 | 280·2 | 1111·4 | 228·4 | 1216·4 | 309·8 | 0·040 | ||||||
| Energy intake, kJ/d | 8193 | 2166 | 9049 | 2235 | 7500 | 1853 | <0·001 | ||||||