Table 5.
Association between MIH and associated factors (clinical and socioeconomical).
| Variables | MIH > 0, n (%) | MIH = 0, n (%) | P value | PRc (CI 95%) |
|---|---|---|---|---|
| Caries in the permanent dentition | ||||
| 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) | ||
| 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) | ||
| 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) | ||
| 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) | ||
| 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) |
PRc: 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.