Table 7.

Changes in calcium (Ca [mg/dl]) and phosphates (P [mg/dl]) levels in blood plasma of study participants

Ca		SE	SC	OE	OC	p (between groups)
Test I	1 h before	2.51 ± 0.07	2.48 ± 0.14	2.45 ± 0.04	2.49 ± 0.07	0.274
Test II	1 h before	2.52 ± 0.08	2.46 ± 0.04	2.50 ± 0.05	2.47 ± 0.10	0.290
p (Test I vs. Test II)	1 h before	0.878	0.612	0.087	0.917
P		SE	SC	OE	OC	p (between groups)
Test I	1 h before	1.17 ± 0.14	1.09 ± 0.26	1.10 ± 0.24	0.97 ± 0.50	0.927
Test II	1 h before	1.28 ± 0.15	1.30 ± 0.18	1.29 ± 0.25	1.24 ± 0.17	0.877
p (Test I vs. Test II)	1 h before	0.241	0.128	0.612	0.173

Results are shown as means ± SEM (SE – experimental group with suboptimal level of vitamin D, SC – control group with suboptimal level of vitamin D, OE – experimental group with optimal lever of vitamin D, OC – control group with optimal level of vitamin D); p (between groups) Kruskal-Wallis test; p (inside groups) Friedman test for dependent means; p (Test I vs Test II) Wilcoxon test