Table 3.
Univariate analysis of prognostic factors (significant bolded).
| Prognostic factors | 5-Year LRFS% | 5-Year DFS% | 5-Year OS% |
|---|---|---|---|
| Total group | 18 | 15 | 17 |
| Sex | P = 0.02 | P = 0.04 | |
| Female | 29 | 24 | 32 |
| Male | 9 | 9 | 7 |
| Age | |||
| >56 year | 31 | 22 | 8 |
| ≤56 year | 9 | 9 | 26 |
| Histological subtype | P = 0.04 | ||
| Ca planoepitheliale | 11 | 11 | 9 |
| Adenoid cystic carcinoma | 33 | 33 | 80 |
| Adenocarcinoma | 0 | 0 | 17 |
| Nondifferentiated | NA | NA | 0 |
| Small cell carcinoma | 0 | 0 | 0 |
| Ca solidum | NA | 50 | 33 |
| Others, unknown | 0 | 0 | 0 |
| Localisation | |||
| 1/3 upper | 0 | 0 | 12.5 |
| 1/3 middle | 0 | 0 | 29 |
| 1/3 lower | 24 | 24 | 16 |
| Not applicable | NA | NA | 0 |
| Localisation | |||
| Anterior wall | 25 | 25 | 14 |
| Posterior wall | 0 | 0 | 22 |
| Lateral wall | 25 | 25 | 9 |
| Circumferential | 0 | 0 | 0 |
| Not applicable | 19 | 17 | 19 |
| Year of start of treatment | P = 0.04 | ||
| 1962–1988 | 13 | 11 | 12 |
| 1989–2006 | 23 | 18 | 20 |
| Type of treatment | P = 0.005 | ||
| Surgery followed by radiotherapy | 0 | 0 | 66 |
| Radiotherapy alone | 21 | 18 | 16 |
| Chemoradiotherapy | NA | NA | 0 |
| Symptomatic treatment | NA | NA | 0 |
| Stage | P = 0.04 | ||
| I | NA | NA | 60 |
| II | 10 | 9 | 14 |
| IIIA | 29 | 14 | 12 |
| IIIB | NA | NA | 0 |
| IV | NA | NA | 0 |
| Radiotherapy | P = 0.01 | ||
| Without radiotherapy | 0 | 0 | 0 |
| Pallative | 0 | 0 | 0 |
| Radical | 21 | 18 | 31 |
| Performance status (Karnofsky) | P = 0.002 | ||
| <80 | 19 | 9 | 3 |
| ≥80 | 21 | 21 | 47 |
NA – not applicable.