. 2016 Jan 21;16:56. doi: 10.1186/s12889-016-2712-y

Table 3.

Urinary sodium and potassium excretion in different populations

24 h Urinary measure		N	Sodium (Mmol/24 h)		Potassium (Mmol/24 h)		24 h Na/K		Converted Salt(g)
24 h Urinary measure		N	Mean ± SD	P	Mean ± SD	P	Mean ± SD	P	Mean ± SD	P
Sex	Male	1069	196.36 ± 72.29	P < 0.01	28.37 ± 10.07	P = 0.07	7.14 ± 2.00	P < 0.01	11.49 ± 4.23	P < 0.01
Sex	Female	1133	180.47 ± 65.77	P < 0.01	27.64 ± 8.92	P = 0.07	6.69 ± 1.96	P < 0.01	10.56 ± 3.85	P < 0.01
Residence	Urban	823	205.23 ± 71.35	P < 0.01	29.97 ± 10.18	P < 0.01	7.09 ± 2.07	P < 0.01	12.01 ± 4.17	P < 0.01
Residence	Rural	1379	178.02 ± 66.26	P < 0.01	26.81 ± 8.86	P < 0.01	6.80 ± 6.80	P < 0.01	10.41 ± 3.88	P < 0.01
Age	18–34	625	189.55 ± 69.94	P = 0.19	26.47 ± 8.76	P < 0.01	7.30 ± 1.98	P < 0.01	11.09 ± 4.09	P = 0.19
	35–49	731	190.91 ± 71.66		28.34 ± 9.96		6.92 ± 1.93		11.17 ± 4.19
	50–69	846	184.82 ± 67.05		28.81 ± 9.49		6.59 ± 2.00		10.81 ± 3.92
Total		2202	188.19 ± 69.45		27.99 ± 9.50		6.91 ± 1.99		11.00 ± 4.06