Table 1.
Patient baseline characteristics and demographics (n = 61)
| Factors | CIMRT | IMRT | χ2 | P-value | Definitive IMRT | Postop IMRT | χ2 | P-value |
|---|---|---|---|---|---|---|---|---|
| Gender | 3.53 | 0.06 | 1.42 | 0.23 | ||||
| Male | 31 | 18 | 12 | 37 | ||||
| Female | 4 | 8 | 5 | 7 | ||||
| Age (years) | 0.37 | 0.54 | 0.02 | 0.88 | ||||
| ≤50 | 6 | 3 | 3 | 6 | ||||
| >50 | 29 | 23 | 16 | 36 | ||||
| Primary site | 0.63 | 0.98 | 5.57 | 0.35 | ||||
| Oral | 9 | 7 | 4 | 12 | ||||
| Oropharynx | 1 | 1 | 1 | 1 | ||||
| Hypopharynx | 8 | 5 | 3 | 10 | ||||
| Nasal and paranasal sinus | 6 | 6 | 3 | 9 | ||||
| Larynx | 10 | 6 | 5 | 11 | ||||
| Salivary gland | 1 | 1 | 1 | 1 | ||||
| T stage | 2.95 | 0.23 | 1.75 | 0.42 | ||||
| T2 | 8 | 8 | 4 | 12 | ||||
| T3 | 6 | 7 | 5 | 19 | ||||
| T4 | 10 | 11 | 8 | 13 | ||||
| N stage | 3.14 | 0.27 | 2.05 | 0.36 | ||||
| N0 | 20 | 9 | 7 | 22 | ||||
| N1 | 8 | 10 | 4 | 14 | ||||
| N2 | 7 | 7 | 6 | 8 | ||||
| UICC stage | 0.49 | 0.48 | 3.38 | 0.07 | ||||
| III | 18 | 11 | 5 | 24 | ||||
| IVa | 10 | 12 | 10 | 15 | ||||
| IVb | 7 | 3 | 2 | 5 |
Abbreviations: CIMRT, chemotherapy combined with intensity-modulated radiation therapy; N, node; Postop IMRT, postoperative IMRT; T, tumor; UICC, International Union Against Cancer; IMRT, intensity-modulated radiation therapy.