Drinking patterns and hydration biomarkers among young adults with different levels of habitual total drinking fluids intake in Baoding, Hebei Province, China: a cross-sectional study

Table 5 The characteristics of blood samples among participants consuming different levels of total drinking fluids

	LD₁ (n = 39)				LD₂ (n = 39)				LD₃ (n = 39)				HD (n = 39)				Total (n = 156)				P
	M	Q	X	SD	M	Q	X	SD	M	Q	X	SD	M	Q	X	SD	M	Q	X	SD
Osmolality (mOsm/kg)			299	5			298	6			300	5			299	5			299	5	0.519
Na (mmol/L)	140	1			141	2			141	2			141	2			141	2			0.095
K (mmol/L)	4.4	0.5			4.6	0.4			4.6	0.6			4.6	0.6			4.6	0.5			0.112
Cl (mmol/L)	104	2			104	3			104	2			104	2			104	2			0.660
Mg (mmol/L)	0.90	0.06			0.90^d	0.05			0.92^b	0.06			0.92^c,e	0.08			0.91	0.07			0.013
Ca (mmol/L)			2.50	0.06			2.51	0.07			2.51	0.07			2.53	0.07			2.51	0.07	0.169
Phosphate (mmol/L)			1.32	0.13			1.31	0.16			1.31	0.17			1.28	0.18			1.30	0.16	0.676

Values are shown as the mean ± standard deviation (SD) and median (M) and quartile ranges (Q)
^aThere was statistically significant difference between LD₁ and LD₂ groups, p < 0.05; ^bThere was statistically significant difference between LD₁ and LD₃ groups, p < 0.05; ^cThere was statistically significant difference between LD₁ and HD groups, p < 0.05; ^dThere was statistically significant difference between LD₂ and LD₃ groups, p < 0.05; ^eThere was statistically significant difference between LD₂ and HD groups, p < 0.05; ^fThere was statistically significant difference between LD₃ and HD groups, p < 0.05

ISSN: 1471-2458