BMC Oral Health

Table 5 The distribution frequencies of the missense mutation sites of the vicK gene in the high-severity caries and caries-free groups

From: Relationship between the genetic polymorphisms of vicR and vicK Streptococcus mutans genes and early childhood caries in two-year-old children

Missense	Caries-free (n = 121)		High-severity (n = 121)		x ²	P-value^a
mutation	n (%)		n (%)		x ²	P-value^a
173 A → G†	0	0.00	3	2.48	3.308	0.247^b
337 A → C	118	97.52	115	95.04	1.309	0.499^b
470 C → T	1	0.83	12	9.92	9.836	0.002^a
1051 A → G	115	95.04	115	95.04	0	1.000^b
1132 C → T	2	1.65	0	0.00	2.017	0.498^b
1258 G → A	5	4.13	0	0.00	5.105	0.060^b
1260 G → C	3	2.48	0	0.00	3.308	0.247^b
1277 C → T	6	4.96	1	0.83	3.678	0.120^b
1348 T → C	6	4.96	3	2.48	1.309	0.499^b

†A → G, A represents the 23 locus base in UA159, and G represents the 23 locus base in the clinical strains
^aChi-square test
^bFisher’s exact test

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ISSN: 1472-6831

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