Table 3.
Permanent dentition caries prevalence (age 6 years) according to independent variables
| Variables | N | DMFT≥1 | P | ||
|---|---|---|---|---|---|
| n | (%) | ||||
| Maternal age at birth | 0.901 | ||||
| < 20 years | 48 | 4 | (8.3) | ||
| ≥ 20 years | 218 | 17 | (7.8) | ||
| Maternal education | 0.002 | ||||
| ≤ 8 years | 66 | 11 | (16.7) | ||
| > 8 years | 200 | 10 | (5.0) | ||
| Weight gestational gain | 0.042 | ||||
| ≤ Median (11.3 kg) | 130 | 6 | (4.6) | ||
| > Median | 131 | 15 | (11.5) | ||
| Family income | 0.538† | ||||
| 1st tertile (lowest) | 85 | 7 | (8.2) | ||
| 2nd tertile | 90 | 8 | (8.9) | ||
| 3rd tertile (highest) | 84 | 4 | (4.8) | ||
| Child sex | |||||
| Male | 135 | 10 | (7.4) | 0.765 | |
| Female | 131 | 11 | (8.4) | ||
| Child BMI z-scores at 6 months | 0.901 | ||||
| ≤ 1 SD | 188 | 15 | (8.0) | ||
| > 1 SD | 71 | 6 | (8.5) | ||
| Sugar consumption index at 6 months | <0.001† | ||||
| ≤ 3 | 77 | 1 | (1.3) | ||
| 4–6 | 100 | 7 | (7.0) | ||
| ≥ 7 | 77 | 13 | (16.9) | ||
| Monthly sugar purchased at 3 years (kg/person) | 0.047 | ||||
| ≤ Median (1.1) | 109 | 5 | (4.6) | ||
| >Median | 108 | 13 | (12.0) | ||
| Visible plaque | 0.107 | ||||
| No | 109 | 6 | (5.5) | ||
| Yes | 122 | 14 | (11.5) | ||
| Developmental defects of enamel at 3 years | 0.277 | ||||
| No | 185 | 14 | (7.6) | ||
| Yes | 48 | 6 | (12.5) | ||
| Previous dental visit | 0.123 | ||||
| Yes | 57 | 2 | (3.5) | ||
| No | 169 | 17 | (10.1) | ||
| Dental caries at 3 years | 0.001 | ||||
| Yes | 92 | 15 | (16.3) | ||
| No | 141 | 5 | (3.5) | ||
| Toothbrushing frequency at 6 years | 0.663 | ||||
| ≤ 1 × per day | 43 | 4 | (9.3) | ||
| ≥ 2 × per day | 204 | 15 | (7.4) | ||
Abbreviations: BMI, body mass index; SD, standard deviation; DMFT, decayed (cavitated or noncavitated), missing due to caries, restored permanent tooth index
†
Chi-square test for linear trend.