Table IV.
Kaplan-Meier survival analysis of the laryngeal cancer patients in the primary non-surgical treatment group and the Mantel-Cox test between categories of individual, possibly dependent, parameters.
| Group | Patients, n | Mortalities, n | Survival rate, % | Median | Mantel-CoxZ-value | P-value |
|---|---|---|---|---|---|---|
| Sex | 0.203 | 0.652 | ||||
| Female | 13 | 7 | 46.2 | 45.0 | ||
| Male | 43 | 30 | 30.2 | 56.0 | ||
| Age, years | 2.164 | 0.339 | ||||
| ≤50 | 3 | 1 | 66.7 | |||
| 51–70 | 33 | 20 | 39.4 | 64.0 | ||
| >70 | 20 | 16 | 20.0 | 40.0 | ||
| Tumor extent | 3.887 | 0.143 | ||||
| T2 | 24 | 13 | 45.8 | 68.0 | ||
| T3 | 25 | 19 | 24.0 | 40.0 | ||
| T4 | 7 | 5 | 28.6 | 25.0 | ||
| Disease stage | 2.831 | 0.243 | ||||
| II | 21 | 12 | 42.9 | 68.0 | ||
| III | 23 | 17 | 26.1 | 40.0 | ||
| IV | 12 | 8 | 33.3 | 56.0 | ||
| Local recurrence | 3.624 | 0.057 | ||||
| No | 39 | 23 | 38.5 | 66.0 | ||
| Yes | 17 | 13 | 23.5 | 25.0 | ||
| Cervical nodal recurrence | 1.515 | 0.218 | ||||
| No | 52 | 34 | 34.6 | 56.0 | ||
| Yes | 4 | 3 | 25.0 | 19.0 |