Table 1 Descriptive statistics and Chi-Squared-Test for patient characteristics
Age | Total | DTS < 5 | DTS ≥ 5 | DTS missing | p |
|---|---|---|---|---|---|
Range | 41–85 | 48–83 | 43–85 | 41–81 | – |
Mean | 62.6 | 64.2 | 60.6 | 63.9 | |
Standard deviation | 8.6 | 7.1 | 7.9 | 10.7 | |
Gender | |||||
 Male | 100 (83.3%) | 34 (28.4%) | 42 (35.0%) | 24 (20.0%) | .26 |
 Female | 20 (16.7%) | 4 (3.3%) | 10 (8.3%) | 6 (5.0%) | |
Site | |||||
 Oropharynx | 52 (43.3%) | 18 (15.0%) | 24 (20.0%) | 10 (8.3%) | .19 |
 Larynx | 26 (21.7%) | 8 (6.7%) | 10 (8.3%) | 8 (6.7%) | |
 Oral cavity | 25 (20.8%) | 6 (5.0%) | 9 (7.5%) | 10 (8.3%) | |
 Hypopharynx | 13 (10.8%) | 6 (5.0%) | 6 (5.0%) | 1 (0.8%) | |
 Other | 4 (3.4%) | 0 (0.0%) | 3 (2.5%) | 1 (0.8%) | |
Stage/Metastases | |||||
 I | 17 (14.2%) | 4 (3.3%) | 9 (7.5%) | 17 (14.2%) | .48 |
 II | 27 (22.5%) | 13 (10.8%) | 8 (6.7%) | 13 (10.8%) | |
 III | 24 (20.0%) | 8 (6.7%) | 8 (6.7%) | 0 | |
 IVa | 39 (32.5%) | 12 (10.0%) | 18 (15.0%) | 0 | |
 IVb | 10 (8.3%) | 1 (0.8%) | 6 (5.0%) | 0 | |
 IVc | 3 (2.5%) | 0 | 3 (2.5%) | 0 | |
 N0 | 49 (40.8%) | 15 (12.5%) | 22 (18.3%) | 12 (10.0%) | .59 |
 N1 | 18 (15.0%) | 4 (3.3%) | 10 (8.3%) | 4 (3.3%) | |
 N2 | 41 (34.2%) | 17 (14.2%) | 16 (13.3%) | 9 (7.5%) | |
 N3 | 12 (10.0%) | 2 (1.7%) | 4 (3.3%) | 5 (4.1%) | |
 M0 | 113 (94.2%) | 38 (31.7%) | 47 (39.2%) | 28 (23.3%) | .048 |
 M1 | 7 (5.8%) | 0 (0.0%) | 5 (4.1%) | 2 (1.7%) | |
Therapy | |||||
 Surgery | 27 (22.5%) | 7 (18.5%) | 12 (23.1%) | 8 (6.7%) | .21 |
 Surgery + adjuvant R(C)T | 49 (40.8%) | 17 (14.1%) | 19 (15.8%) | 13 (10.9%) | |
 Primary R(C)T | 39 (32.5%) | 14 (11.7%) | 17 (14.1%) | 8 (6.7%) | |
 Palliative R(C)T | 5 (4.2%) | 0 (0.0%) | 4 (3.3%) | 1 (0.8%) | |