Table 3.

Crystallization intensity occurring in synthetic urine in the presence of P. mirabilis or P. mirabilis with various Lactobacillus strains during incubation at 37 °C for 24 h

Culture	Amount of calcium and magnesium (μg/mL)
	0 h		5 h		8 h		24 h
	Ca2+	Mg2+	Ca2+	Mg2+	Ca2+	Mg2+	Ca2+	Mg2+
P.m	2.28 ± 0.47	1.11 ± 0.19	2.97 ± 0.33	1.22 ± 0.24	23.02 ± 4.39	17.26 ± 7.09	41.12 ± 6.75	47.68 ± 8.9
P.m + L.p. 23K2	2.66 ± 0.34	1.24 ± 0.22	2.97 ± 0.43	1.31 ± 0.36	21.37 ± 5.05	18.24 ± 9.7	53.71 ± 6.67*	45.66 ± 10.4
P.m. + L.p. 18K2	3.05 ± 0.39	1.21 ± 0.27	3.21 ± 0.37	1.2 ± 0.36	37.9 ± 5.15*	20.19 ± 9.22	56.11 ± 7.0*	35.42 ± 13.4
P.m. + L.p. 2K18	2.75 ± 0.88	1.22 ± 0.35	2.86 ± 0.47	1.11 ± 0.2	40.68 ± 7.74*	33.55 ± 2.17*	49.7 ± 7.74	48.13 ± 8.78
P.m. + L.p 21K7	2.1 ± 0.3	0.92 ± 0.2	2.73 ± 0.57	1.13 ± 0.29	42.03 ± 4.87*	43.08 ± 10.19*	49.91 ± 5.62	46.02 ± 7.8
P.m. + L.b. 18K7	2.28 ± 0.3	1.06 ± 0.1	3.36 ± 0.83	1.2 ± 0.59	42.68 ± 6.15*	31.46 ± 17.81	45.19 ± 10.35	53.05 ± 8.16
P.m. + L.b. 20K3	4.39 ± 1.01	1.54 ± 0.6	3.99 ± 1.83	1.1 ± 0.23	33.34 ± 5.4*	39.8 ± 9.64*	41.73 ± 3.05	47.79 ± 8.27
P.m. + L.b.21K5	4.45 ± 1.84	1.3 ± 0.4	4.57 ± 1.57*	0.79 ± 0.37	33.73 ± 2.77*	44.07 ± 8.4*	41.13 ± 2.75	53.08 ± 8.45
P.m. + L.b. 1K1	3.64 ± 0.78	1.48 ± 0.54	4.75 ± 1.4*	1.26 ± 0.3	35.26 ± 2.91*	41.43 ± 5.19*	39.28 ± 2.64	48.36 ± 12.18

P.m. Proteus mirabilis C7, L.p. Lactobacillus plantarum, L.b. Lactobacillus brevis

*p < 0.05 for comparison of each ion concentration to control culture of P. mirabilis, Mann-Whitney U test