The Scientific World Journal

Research Article

Molar-Incisor Hypomineralization: Prevalence Comparative Study in 6 Years of Interval

Table 5

Association between MIH and associated factors (clinical and socioeconomical).


Variables	MIH > 0, n (%)	MIH = 0, n (%)	value	PR_c (CI 95%)
Caries in the permanent dentition	MIH > 0, n (%)	MIH = 0, n (%)	value	PR_c (CI 95%)

DMFT = 0	59 (75.6)	366 (78.3)	0.588	Reference 1.141 (0.709–1.835)
DMFT > 0	19 (24.4)	101 (21.7)	0.588	Reference 1.141 (0.709–1.835)
Caries in the primary dentition
dmft = 0	43 (55.1)	274 (58.6)	0.557	Reference 1.132 (0.749–1.709)
dmft > 0	35 (44.9)	193 (41.4)	0.557	Reference 1.132 (0.749–1.709)
Dental fluorosis
DF = 0	68 (79.5)	354 (75.8)	0.034	Reference 0.505 (0.268–0.950)
DF > 0	10 (20.5)	113 (24.2)	0.034	Reference 0.505 (0.268–0.950)
Deciduous molar hypomineralization
DMH = 0	75 (96.1)	457 (97.8)	0.361	Reference 1.637 (0.594–4.51)
DMH > 0	3 (3.9)	10 (2.2)	0.361	Reference 1.637 (0.594–4.51)
Monthly family income
>3 MFI	18 (13.4)	116 (86.6)	0.194	Reference 1.130 (0.655–1.949)
<2 MFI	29 (15.2)	162 (84.8)	0.194	Reference 1.130 (0.655–1.949)

PR_c: crude prevalence ratio calculated by Poisson regression with robust variance; CI 95%: confidence interval 95%; DMFT: decayed, missing or filled permanent teeth; dmft: decayed, missing, or filled deciduous teeth.