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. 2021 Feb 19;24(7):1861–1868. doi: 10.1017/S1368980021000811

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
*

P value for gender difference by independent t test or χ 2 test/Fisher’s exact test where appropriate.

By the WHO(2,22).

By the China Nutrition Society(21).