Table 3. Sensitivity and Specificity of the Telephone Questionnaire Stratified by Various Covariates .
| Parameter | % | |
|---|---|---|
| Sensitivity | Specificity | |
| Age, y | ||
| ≤60 | 94.4 | 75.7 |
| >60 | 50.0 | 74.1 |
| Sex | ||
| Male | 88.2 | 77.9 |
| Female | 100.0 | 63.4 |
| Educational attainment | ||
| <Secondary school | 87.5 | 69.0 |
| >Secondary school | 91.6 | 79.4 |
| Subsite | ||
| Tongue | 100.0 | 73.4 |
| Buccal mucosa, alveolus, or RMT | 71.4 | 77.0 |
| Othera | NA | 76.9 |
| Stage | ||
| Early | 100.0 | 83.4 |
| Advanced | 88.8 | 71.8 |
| Adjuvant therapy | ||
| None | 100.0 | 74.0 |
| RT | 90.9 | 74.3 |
| CTRT | 87.5 | 77.0 |
| Site of recurrence | ||
| Local | 85.7 | NA |
| Regional | 100.0 | NA |
| Distant | 83.3 | NA |
| Second primary | 100.0 | NA |
Abbreviations: CTRT, chemoradiotherapy; NA, not available; RMT, retromolar trigone; RT, radiotherapy.
a
Other subsites consist of the floor of the mouth, lip, and palate.