Table 3.
Association of number of missing teeth (fully adjusted for confounding factors) as a causative factor of Oral Squamous Cell Carcinoma (OSCC)/ Head and Neck Cancer (HNC)/ Carcinoma of Oral Cavity and Oropharynx (OCP)/ Upper Airway and Digestive Tract Cancers (UADT)
| STUDY | COHORT | FREQUENCY | OR | CI |
|---|---|---|---|---|
| Chen [15] | OSCC | <=5 >5 |
2.53 2.84 |
0.99-6.48 1.10- 7.34 |
| Chang [16] | OSCC | 1-10 10-20 >20 |
1.15 1.34 2.40 |
0.61-2.20 0.58-3.07 0.97-5.97 |
| Guneri [17] | OSCC | More natural teeth (case, control) |
Mean Cases= 12.04 Controls= 19.3 |
- - - |
| Rosenquist [36] | OSCC | >20 | 3.4 | 1.4-8.5 |
| Balaram [10] | OSCC | >5 | M=3.89 F= 7.61 |
2.46–6.17 3.89–14.88 |
| Talamini [18] | OSCC | <5 6-15 >= 16 |
1 1.1 1.4 |
1 0.5-2.6 0.6-3.1 |
| Zheng [19] | OSCC | Inadequate dentition | 3.9 | 2.1-7.4 |
| Kawakita [21] | HNC | <5 >=5 |
1 1.49 |
1 1.08-2.04 |
| Hashim [22] | HNC | <5 | 0.78 | 0.74-0.82 |
| Divaris [37] | HNC | 0-5 6-15 16-28 |
1 1.07 1.21 |
1 0.81-1.42 0.94-1.56 |
| Guha [7] Central Europe |
HNC | 6-15 | 2.84 | 1.26-6.41 |
| Guha [7] Latin America |
HNC | 6-15 >=16 |
0.87 1.21 |
0.56-1.35 0.77-1.90 |
| Garrote [25] | OCP | <=5 6-15 >=16 |
1 1.82 2.74 |
1 0.76-4.35 1.23-6.12 |