Table 3.

Multivariable analyses of factors significantly associated with ECC incidence.

Dependent Variables		Results (not adjusted for age)
Model	Dichotomous dependent variable	Multivariable logistic analysis*****
		Variables in the final model	OR (95% CI)		P-value
A.	Three-year incidence from baseline to 36-month follow-up (dichotomous)***	AUC* of daily frequency of sweetened foods consumption**	9.22 (2.32–36.67)		0.002
		Premature delivery (<37 weeks)	0.21 (0.04–0.99)		0.049
		AUC* of daily frequency of 100% juice consumption	0.37 (0.13–0.99)		0.049
B.	Incidence from 12- to 24-month follow-up (dichotomous)***	Daily frequency of toothbrushing at baseline	0.34 (0.15–0.75)		0.01
		History of previous visit to a dentist at 24-month follow-up***	4.57 (1.14–18.25)		0.03
Model	Count dependent variable	Multivariable negative binomial model analysis*****
		Variables in the final model	Estimate (SE)	IRR****	P-value
C.	Three-year incidence from baseline to 36-month follow-up*** (dmfs increment)	No variables significant at P<0.05******	NA	NA	NA
D.	Incidence from 12- to 24-month follow-up*** (dmfs increment)	Presence of a regular dentist by 24-month follow- up***	1.29 (0.61)	3.63	0.03

^*AUC includes visits when mean ages of children were 1.5, 2.0, 2.5 and 3.1 years, respectively.

^**Sweetened foods include Pop Tarts™, sugared cereals, etc.

^***Mean (S.D) ages were 1.1 (0.3), 2.0 (0.4), 3.1 (0.4), 4.0 (0.4) years at baseline, 12-month, 24-month, and 36-month follow-up, respectively, while AUC covered the period from age 1.5 to 3.0 years.

^****IRR obtained from the exponentiation of the regression coefficients.

^*****No two-way interactions were significant between pairs of variables (all p-values>0.05)

^******Neither mother’s DMFS at baseline nor history of previous dental visit by 24-month follow-up were significant here at P<0.05.