Socioeconomic inequality in oral health behavior in Iranian children and adolescents by the Oaxaca-Blinder decomposition method: the CASPIAN- IV study

Table 2 Association of independent variables and teeth brushing in logistic regression analysis

Variables	Crude OR (95 % CI)	P-value	Adjusted OR (95 % CI)	P-value
SES (Q1)
Q2	1.28 (1.14, 1.43)	<0.001	1.19 (1.05,1.35)	< 0.001
Q3	1.40 (1.25,1.57)	< 0.001	1.30 (1.14,1.48)	< 0.001
Q4	1.71 (1.52,1.92)	<0.001	1.53 (1.32,1.78)	<0.001
Q5	2.71 (2.39, 3.07)	< 0.001	2.45 (2.08,2.90)	< 0.001
Birth order (first)
Second	0.90 (0.82,0.98)	0.03	0.97 (0.88,1.08)	0.69
Third	0.74 (0.66,0.82)	<0.001	0.89 (0.78,1.01)	0.09
Fourth and more	0.76 (0.68,0.84)	< 0.001	1.01(0.89,1.15)	0.80
Sex (Boy)
Girl	2.31(2.15, 2.49)	<0.001	2.40 (2.15,2.68)	<0.001
Region (urban)
Rural	0.67 (0.61,0.72)	<0.001	0.85 (0.74,0.97)	0.02
Family size (<4)
>4	0.78 (0.73,0.84)	<0.001	0.90 (0.82,0.98)	0.04
Sweetened beverages (non-daily)
daily	0.70 (0.62, 0.80)	<0.001	0.82(0.70,0.95)	0.01
Living with parent (none of them)
One of them	1.30 (0.91,1.86)	0.14	1.50 (0.93,2.42)	0.09
Both of them	1.43 (1.05,1.97)	0.02	1.36 (0.92,2.02)	0.11
Smoking status (no smoker)
Only passive smoker	0.74 (0.68,0.80)	< 0.001	0.76 (0.70,0.83)	< 0.001
Only active smoker	0.39 (0.25, 0.61)	< 0.001	0.45 (0.27, 0.73)	0.001
Passive and active smoker	0.53 (0.41,0.70)	<0.001	0.60(0.45,0.79)	<0.001
Age (year)	1.04 (1.02, 1.05)	<0.001	1.03 (1.02,1.05)^a	<0.001

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