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. 2016 Oct 11;11(10):e0162988. doi: 10.1371/journal.pone.0162988

Table 6. Result of the Mann-Whitney U test (mean rank) for comparing the density in saliva of bacteria from the orange and red complex among children and adolescents from the G-DS and G-ND in age groups 3–7 years and 8–12 years.

Bacteria		3–7 years			8–12 years
Bacteria		G-DS	G-ND	p-value	G-DS	G-ND	p-value
Orange complex	C. rectus	15.83	12.10	0.249^ns	20.79	13.93	0.045^*
	F. nucleatum	17.03	9.95	0.029^*	19.42	14.75	0.173 ^ns
	P. intermedia	18.44	7.40	0.001^*	20.04	14.38	0.098 ^ns
	P. nigrescens	17.69	8.75	0.006^*	19.67	14.60	0.138 ^ns
Red complex	T. forsythia	13.47	16.35	0.375^ns	17.00	16.20	0.815 ^ns
	P. gingivalis	16.39	11.10	0.103^ns	19.71	14.58	0.133 ^ns
	T. denticola	15.78	12.20	0.270^ns	19.88	14.48	0.114 ^ns

* Significant difference—Mann-Whitney U test.

ns—Not significant difference—Mann-Whitney U test.