Table 1 Patient characteristics
N | IACRT group | SCRT group | P value |
|---|---|---|---|
The number of patients | 66 (100%) | 18 (100%) | |
Age, years | |||
Median | 73 (range, 46–93) | 70.5 (range, 51–91) | 0.26 (< 65 years) |
Gender | |||
Male | 32 (48.5%) | 14 (77.8%) | 0.18 |
Female | 34 (51.5%) | 4 (22.2%) | |
ECOG PS | |||
0 | 50 (75.8%) | 10 (55.6%) | 0.050 |
1 | 16 (24.2%) | 7 (38.8%) | |
2 | 0 | 1 (5.6%) | |
Histology | |||
Squamous cell carcinoma | 63 (95.5%) | 17 (94.4%) | NA |
Verrucous carcinoma | 1 (1.5%) | 1 (5.6%) | |
Poorly differentiated carcinoma | 2 (3%) | 0 | |
Clinical stage (TNM Classification of Malignant Tumors, 8th edition) | |||
Stage III | 14 (21.2%) | 3 (16.7%) | 0.68 |
Stage IVA | 49 (74.3%) | 13 (72.2%) | |
Stage IVB | 3 (4.5%) | 2 (11.1%) | |
T category | 0.27 | ||
T2 | 7 (10.6%) | 2 (11.1%) | |
T3 | 17 (25.8%) | 2 (11.1%) | |
T4a | 37 (56.0%) | 11 (61.1%) | |
T4b | 5 (7.6%) | 3 (16.7%) | |
N category | 0.22 | ||
N0 | 25 (37.9%) | 4 (22.2%) | |
N1 | 12 (18.2%) | 4 (22.2%) | |
N2a | 0 | 1 (5.6%) | |
N2b | 22 (33.3%) | 3 (16.7%) | |
N2c | 5 (7.6%) | 6 (33.3%) | |
N3a | 2 (3%) | 0 | |
Location | |||
Lt | 35 (53.0%) | 12 (66.7%) | 0.34 |
Rt | 25 (37.9%) | 5 (27.7%) | |
Middle | 6 (9.1%) | 1 (5.6%) | |
Upper/maxillary | 41 (62.1%) | 7 (38.8%) | 0.19 |
Lower/mandibular | 25 (37.9%) | 11 (61.2%) | |
Tumor diameter (maximum, mm) | 40 (range, 12–60) | 45 (range, 20–90) | 0.31 |