A case-control study of determinants for high and low dental caries prevalence in Nevada youth

BMC Oral Health

Table 3 Results of Chi-Square tests on Select Variables and Bivariate Logistic Regression of Significant Variables from Chi-Square Tests

Variable	Control Group		Case Group		Χ²Statistics	Caries Free vs. Top 30% DMFT Score		Wald Statistic
	N	%	N	%		OR	(95% CI)
Sex								21.25*
Male	1086	53.1	953	44.9	27.64*	1.00
Female	959	46.9	1171	55.1		1.25	(1.09-1.41)
Age‡								58.40***
12-15	1654	81.0	1346	63.3	161.06**	1.00
16-19	388	19.0	781	36.7		2.04	(1.75 - 2.33)
Dental Insurance								46.59*
Insured	1176	75.4	1353	66.6	63.13**	1.00
Not Insured	383	24.6	678	33.4		1.50	(1.25 - 1.75)
Race Group‡								152.78***
White, Non-
Hispanic †	1296	63.5	842	39.6
Black, Non-					240.08**	1.00
Hispanic	173	8.5	278	13.1		1.75	(0.82 - 2.98)
Hispanic †	573	28.0	1007	47.3		2.35	(2.05 - 2.55)
Fluoridation								57.73***
Fluoridation	1324	64.7	580	27.3		1.00
Without					35.21*
Fluoridation	721	35.3	1544	72.7		1.98	(1.40 - 2.56)
Second Hand Smoke	565	27.8	871	41.2		1.00		32.38*
Exposed	1470	72.2	1244	58.8	85.41**	1.33
Non-exposed							(1.08 - 1.58)
Smoking Status								2.05
Currently Smoke	215	15.4	372	23.6	31.01*	1.00
Currently do not Smoke	1177	84.6	1204	76.4		1.16	(0.94-1.38)
Applied Sealants								52.88***
No Sealants	752	36.8	1153	54.2		1.00
Sealants	1290	63.2	974	45.8	126.13**	1.52	(1.39-1.65)

Note: *p < 0.05; ** p < 0.01; ***p < 0.001; D-Score and DMFT Scores computed on the 30% with the highest DMFT Scores; ‡ Groups as Defined in NHANES, 2007; †Significant differences between 2 groups only

ISSN: 1472-6831