Table 5.

Odds ratios of sealant rate among the groups categorized by household income and mother’s education level (95% CI)

Classification	Non-beneficiaries		Beneficiaries
	Model 1 a	Model 2 b	Model 1 a	Model 2 b
Sealant
Household income
I(lower)	0.379 (0.264–0.544) ***	0. 982 (0.318–3.029)	0.552 (0.373–0.818) **	0.845 (0.287–2.487)
II (Lower-middle)	0.493 (0.364–0.666) ***	0.604 (0.230–1.582)	0.671 (0.503–0.896) **	0.729 (0.324–1.640)
III (Middle-upper)	0.648 (0.495–0.847) **	0.913 (0.379–2.199)	0.751 (0.570–0.991) *	0.626 (0.274–1.427)
IV (Upper)	Ref. 1.000	Ref. 1.000	Ref. 1.000	Ref. 1.000
Mother’s education level
Less than high school	1.579 (0.583–4.275)	3.115 (1.060–9.150) *	0.439 (0.226–0.851)**	0.393 (0.177–0.871) *
More than college	Ref. 1.000	Ref. 1.000	Ref. 1.000	Ref. 1.000

The data were analyzed by Complex Samples Logistic Regression

^aAdjusted for age

^bAdjusted for gender, age, region, father’s education level, mother’s education level, household income

^***p < 0.001,^**p < 0.01,^*p < 0.05,^NSp > 0.05