Table 1.
Demographics of each cohort included in the study
| Male | Female | Total | Age, years | Enamel hypoplasia |
Most affected teeth with enamel hypoplasia | DFTa | ||
|---|---|---|---|---|---|---|---|---|
| no | yes | |||||||
| POFC | 1,505 (42.1) | 2,074 (57.9) | 3,579 (50) | 31±14.7 | 3,297 (92.1) | 282 (7.9) | Maxillary left central incisors (15.24%), maxillary right central incisors (14.89%), and maxillary right lateral incisors (14.89%) | 4.36±4.28 |
| COHRA1 | 783 (42.6) | 1,054 (57.4) | 1,837 (25.7) | 25.5±13.7 | 1,789 (97.4) | 48 (2.6) | Maxillary right central incisors (7.84%), maxillary right first molars (6.86), maxillary left lateral incisors (5.88%) | 5.96±5.11 |
| COHRA2 | 32 (2.7) | 1163 (97.3) | 1,195 (16.7) | 30.9±7.9 | 1,115 (93.3) | 80 (6.7) | Maxillary right first molar (6.60%), maxillary left first molar (6.13%), and maxillary left lateral incisors (5.18%) | 5.13±6.93 |
| Dental SCORE | 179 (32.7) | 369 (67.3) | 548 (7.6) | 63.1±7.5 | 451 (82.3) | 97 (17.7) | Maxillary right first molar (11.34%), maxillary right second molar (10.31%), and maxillary left lateral incisors (6.18%) | 12.07±5.33 |
| Total | 2,499 (34.9) | 4,660 (65.1) | 7,159 | 37.6±10.95 | 6,652 (92.9) | 507 (7.1) | 6.88±5.41 | |
Data are presented as n (%) or the mean ± SD.
a
DFT counts of decayed and filled teeth due to caries.