Risk factors for early colonization of mutans streptococci – a multiple logistic regression analysis in Swedish 1-year-olds

Table 3 Chi-square analysis of factors possibly associated to oral mutans streptococci in 1-year-olds

Value	Positive/number of observations	Chi-square test MS growth		Chi-square test MS score 2–3
Value	(N = 1,050)	(N)	p-value	(N)	p-value
Caries in sibling ^*	114/576	(42)	0.003	(12)	0.01
Caries in sibling ^**	114/1050	(44)	0.02	(32)	0.10
Night meal	338/1040	(95)	0.65	(33)	0.01
Breastfed	121/1048	(37)	0.40	(12)	0.16
Disease	32/1050	(9)	0.93	(2)	0.89
Medication	21/1045	(8)	0.26	(1)	0.70
Beverage other than water	295/1038	(108)	<0.001	(32)	0.002
>0 erupted teeth	1033/1050	(287)	0.04	(72)	0.26
>8 erupted teeth	342/1050	(112)	0.007	(34)	0.006
No tooth brushing	63/1050	(23)	0.096	(7)	0.17

^*Only children who had siblings.
^**All children, whether or not they had siblings.
Factors associated with the presence of mutans streptococci (MS) and with high or very high (2–3) MS score in 1-year-olds according to Chi-square test. For explanation of the abbreviations of the values, see Table 1.

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