Table 3 Multinomial logistic regression, using caries group as the dependent variable, testing different models of sugar consumption, oral health behaviors, OHRQoL and dental anxiety, and oral health as the independent variables.

	Model 1 Sugar consumption (p = 0.007)			Model 2 Oral health behaviors (p = 0.015)			Model 3 OHRQoL & DA (p = 0.047)			Model 4 Oral health (p = 0.030)
		OR	95% CI		OR	95% CI		OR	95% CI		OR	95% CI
High caries group	Sugary soda often	ref		Using toothpaste often	Ref.		Good OHRQoL	0.38	0.15-0.95	Gingivitis	1.03	0.96-1.11
	Sugary soda less often	0.60	0.27–1.34	Using toothpaste less often	0.64	0.29–1.44	Poor OHRQoL	Ref.
	Sweets often	Ref.		Irregular dental care	0.75	0.20–2.85	DA	0.99	0.89–1.10	Plaque	1.06	0.98–1.14
	Sweets less often	0.49	0.33–1.70	Regular dental care	Ref.
Very high caries group	Sugary soda often	Ref.		Using toothpaste often	Ref.		Good OHRQoL	0.36	0.13–1.04	Gingivitis	1.17	1.02–1.22
	Sugary soda less often	0.23	0.09–0.61	Using toothpaste less often	1.22	0.48–3.11	Poor OHRQoL	Ref.
	Sweets often	Ref.		Irregular dental care	3.69	1.22–11.21	DA	1.11	0.99–1.24	Plaque	1.01	0.93–1.10
	Sweets less often	0.78	0.31–1.93	Regular dental care	Ref.

OR Odds ratio, 95% CI 95% Confidence intervals, OHRQoL Oral health-related quality of life, DA Dental anxiety, Ref. Reference category.
The moderate caries group is the reference group.

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