Table 3.

Odds ratios of the mixed-effects models for molar–incisor hypomineralization prevalence and severity for age, sex, and maternal education^a,b

Variables	MIH presencea		MIH severityb
	OR (95% CI)	P	OR (95% CI)	P
Age	1.14 (1.02–1.27)	0.018	1.22 (1.09–1.37)	<0.001
Sexc
Female	0.77 (0.56–1.05)	0.103	0.82 (0.59–1.15)	0.254
Maternal educationd
Elementary school or some middle school	1.39 (0.79–2.38)	0.251	1.79 (1.02–3.13)	0.042
No formal education or elementary school	1.51 (0.88–2.63)	0.127	2.13 (1.25–3.85)	0.006

^aMIH present in any first permanent molar, ^bMIH severity = No MIH or mild MIH versus moderate and severe levels. Reference category: ^cSex = Males, ^dMaternal education = Middle school or higher level of education. MIH = Molar–incisor hypomineralization, OR = Odds ratio, CI = Confidence interval