TABLE 3.

Weighted estimated 24‐hour urinary electrolyte excretion, by Regions

Parameter	Total		Bangkok		Central		North		North‐east		South
	Mean (SD)	Median (IQR)	Mean (SD)	Median (IQR)	Mean (SD)	Median (IQR)	Mean (SD)	Median (IQR)	Mean (SD)	Median (IQR)	Mean (SD)	Median (IQR)
Volume (ml)	1757.1 (954.6)	1530(1030‐2330)	1416.8 (752.6)	1150 (855‐1750)	1553.6 (899.9)	1245 (935‐1920)	1846.4 (874.1)	1645 (1135‐2340)	1569.2 (766.2)	1430 (985‐1850)	2665.7 (1034.5)	1530 (1030‐2330)
Urine creatinine excretion (mg/24h)	1285.7 (401.9)	1210.4 (993.6‐1493.5)	1261.1 (445.8)	1145.1 (930.2‐1495.9)	1323.9 (397.5)	1276.2 (1035.5‐1552.2)	1189.7 (330.6)	1120 (946.2‐1370.5)	1256.5 (402)	1168.4 (959.5‐1449.4)	1381.1 (433.6)	1210.4 (993.6‐1493.5)
Urine sodium (Na) excretion (mg/24h)	3305.1 (1565.6)	2992.8 (2252.4‐4108)	3178.1 (1516.1)	2811.3 (2090‐4097.7)	3417.9 (1539.6)	3127.8 (2373.5‐3994)	3238.8 (1727.6)	2936 (2074.8‐4128.5)	3014.3 (1461.9)	2720.9 (2018.9‐3873.2)	3734.4 (1524.3)	2992.8 (2252.4‐4108)
Urine potassium (K) excretion (mg/24h)	1220.5 (492.1)	1143.1 (869.2‐1488.4)	1191 (514.2)	1099.6 (809.3‐1505.4)	1159.4 (516.7)	1070 (759.4‐1467.3)	1157 (433.3)	1077.3 (866.2‐1377.1)	1259.9 (478.8)	1193.6 (926.5‐1490.2)	1382.3 (471.9)	1143.1 (869.2‐1488.4)
Sodium creatinine ratio (Molar ratio)	1.3 (0.6)	1.2 (0.9‐1.6)	1.3 (0.5)	1.2 (0.8‐1.6)	1.3 (0.5)	1.2 (0.9‐1.6)	1.4 (0.7)	1.3 (0.9‐1.8)	1.2 (0.6)	1.1 (0.8‐1.5)	1.4 (0.6)	1. 2 (0.9‐1.6)
Urine Na/K ratio (mmol/mmol)	5 (2.4)	4.5 (3.3‐6.1)	4.7 (1.8)	4.5 (3.5‐5.6)	5.5 (2.6)	5.1 (3.7‐6.9)	5.1 (2.8)	4.5 (3.2‐6.4)	4.3 (2.1)	4 (2.8‐5.4)	4.8 (2.1)	4.5 (3.3‐6.1)
Estimated sodium consumption	3636 (1722.2)	3292 (2477.6‐4518.8)	3495.9 (1667.7)	3092.4 (2299‐4507.4)	3759.7 (1693.6)	3440.5 (2610.8‐4393.3)	3562.7 (1900.4)	3229.5 (2282.3‐4541.4)	3315.8 (1608.1)	2993 (2220.8‐4260.5)	4107.8 (1676.8)	3292 (2477.6‐4518.8)
Salt intake (g/day)	9.1 (4.30)	8.23 (6.19‐11.29	8.73 (4.15)	7.7 (5.4‐11.3)	9.4 (4.2)	8.6 (6.5‐10.9)	8.9 (4.7)	8.0 (5.7‐11.4)	8.3 (4.0)	7.5 (5.6‐10.6)	10.3 (4.2)	9.6 (7.2‐12.4)