Table 5.
Discriminative validity of condition specific OIDP: association of condition specific OIDP and the presence or absence of hypodontia, the severity of hypodontia and anterior or upper anterior localisation of hypodontia
| Mean OIDP (SD) | Effect size | OIDP > 0, % (n) | Unadjusted OR (95% CI) | Adjusted OR a (95% CI) | |
|---|---|---|---|---|---|
|
Presence of hypodontia
|
|
|
|
|
|
| Non-hypodontia |
0.3 (1.1) |
|
9.9 (10) |
1 |
1 |
| Hypodontia |
2.4 (5.5)** |
0.6 |
30.6 (19)** |
4.0 (1.7 – 9.4) |
3.4 (1.4 – 8.0) |
|
Severity of hypodontia
|
|
|
|
|
|
| Non-hypodontia |
0.3 (1.1) |
|
9.9 (10) |
1 |
1 |
| Mild (1–5 teeth missing) |
1.4 (4.2) |
0.4 |
16.1 (5) |
1.8 (0.5 – 5.6) |
1.6 (0.5 – 5.2) |
| Severe (≥ 6 teeth missing) |
3.4 (6.6)** |
0.8 |
45.2 (14)** |
2.7 (1.7 – 4.4) |
2.5 (1.5 – 4.3) |
|
All anterior hypodontia
|
|
|
|
|
|
| Non-hypodontia |
0.3 (1.1) |
|
9.9 (10) |
1 |
1 |
| All anterior hypodontiab |
3.0 (6.3)** |
0.7 |
37.2 (16)** |
5.4 (2.2 – 13.3) |
4.8 (1.9 – 12.0) |
| Other hypodontia |
1.1 (3.3) |
0.4 |
15.8 (3) |
1.3 (0.7 – 2.6) |
1.2 (0.6 – 2.4) |
|
Upper anterior hypodontia
|
|
|
|
|
|
| Non-hypodontia |
0.3 (1.1) |
|
9.9 (10) |
1 |
1 |
| Upper anterior hypodontiac |
3.8 (7.1)** |
0.9 |
43.8 (14)** |
7.1 (2.7 – 18.4) |
7.0 (2.6 – 18.7) |
| Other hypodontia | 0.9 (2.7) | 0.3 | 16.7 (5) | 1.3 (0.8 – 2.4) | 1.1 (0.6 – 2.1) |
**p < 0.01.
aAdjusted OR for sex and age.
bAt least one tooth missing in the anterior segment.
cAt least one tooth missing in the maxillary anterior segment.