Skip to main content
. 2020 Oct 23;10(10):e037012. doi: 10.1136/bmjopen-2020-037012

Table 3.

Daily urinary excretions of volume, sodium, potassium and creatinine, estimates of salt and potassium intake and proportion of participants meeting WHO recommended targets for salt and potassium consumption.

Variable All (n=569) Men (n=193) Women (n=376)
Volume (mL/24 hours) 1354 (725) 1392 (712) 1335 (731)*
1129 (855–1618) 1150 (900–1721) 1122 (827–1593)
Sodium (mmol/24 hours) 144.3 (78.8) 154.2 (87.4) 139.2 (73.6)*
129.6 (85.7–187.4) 135.4 (87.1–204.8) 126.8 (83.9–179.4)
Potassium (mmol/24 hours) 52.6 (32.6) 56.4 (32.4) 50.6 (32.5)*
46.4 (31.4–64.9) 50.9 (33.8–73.2) 44.7 (30.2–61.6)
Sodium-to-potassium ratio 3.3 (3.4) 3.5 (4.2) 3.2 (2.8)
2.8 (2.0–3.8) 2.7 (1.9–3.9) 2.8 (2.1–3.8)
Creatinine (g/24 hours) 1.33 (0.71) 1.72 (0.87) 1.13 (0.52)‡
1.18 (0.86–1.63) 1.61 (1.16–2.12) 1.02 (0.81–1.36)
Salt intake (g/day) 9.0 (4.9) 9.6 (5.5) 8.7 (4.6)*
8.1 (5.3–11.7) 8.5 (5.4–12.8) 7.9 (5.2–11.2)
Potassium intake (g/day) 2.36 (1.46) 2.53 (1.45) 2.27 (1.46)*
2.08 (1.41–2.91) 2.28 (1.52–3.28) 2.00 (1.35–2.76)
Salt <5 g/day N (%) 124 (21.8) 40 (20.7) 84 (22.3)
Potassium >90 mmol/day N (%) 52 (9.1) 24 (12.4) 28 (7.4)†

Results are mean (SD) and median (25th–75th percentile) or N (%).

*p<0.05.

†p=0.008.

‡p<0.001.