Table 4.

Effects of mineral waters on the venous parameters of the acid–base status

	LBHP			MBMP			HBLP			MBLP			Intergroup comparison
	t0	t4	Pa	t0	t4	Pa	t0	t4	Pa	t0	t4	Pa	Pbt0	Pbt4
Blood pH	7.37 ± 0.03	7.36 ± 0.03	0.003	7.37 ± 0.02	7.36 ± 0.02	0.006	7.38 ± 0.03	7.37 ± 0.03	0.358	7.37 ± 0.03	7.36 ± 0.03	0.142	0.673	0.041
HCO3− (mmol/L)	26.6 ± 2.35	26.9 ± 2.52	0.397	27.2 ± 1.55	27.5 ± 2.38	0.976	26.7 ± 1.75	27.5 ± 2.45	0.057	25.9 ± 2.58	27.3 ± 2.57	0.001	0.203	0.746
pCO2 (mmHg)	45.7 ± 5.63	48.2 ± 6.02	0.040	47.5 ± 4.81	49.4 ± 5.94	0.153	45.6 ± 4.82	47.5 ± 5.73	0.089	44.7 ± 6.51	48.2 ± 6.18	0.002	0.240	0.612
pO2 (mmHg)	22.4 ± 14.1	29.7 ± 21.1	0.155	29.7 ± 10.8	25.2 ± 11.9	0.143	29.3 ± 12.7	27.0 ± 14.4	0.377	36.2 ± 22.2	27.1 ± 14.0	0.007	0.428	0.695
BE (mmol/L)	0.82 ± 1.71	0.61 ± 1.89	0.518	1.25 ± 1.03	1.16 ± 1.70	0.558	0.97 ± 1.34	1.56 ± 1.80	0.056	0.28 ± 1.81	1.07 ± 1.80	0.003	0.124	0.289

All p values < 0.05 were accounted as statistically significant.

^aWilcoxon test.

^bKruskal–Wallis test.