Table 1 Patient and treatment characteristics
From: Geometric changes of parotid glands caused by hydration during chemoradiotherapy
Patient characteristics | CRT (n = 19) | RT (n = 19) | p | |
|---|---|---|---|---|
Gender | Male | 14 | 11 | 0.495 |
Female | 5 | 8 | ||
Age in years | Mean (range) | 58 (42–71) | 62 (47–81) | 0.254 |
Tumor site | Nasopharynx (T3-T4) | 2 | 1 | 0.324 |
Oropharynx (T1-T4) | 15 | 13 | ||
Hypopharynx (T2-T4) | 2 | 2 | ||
Larynx (T2-T3) | 0 | 3 | ||
pCT: PG volume (cm3) | Mean (range) | 20 (7–47) | 24 (13–44) | 0.082 |
pCT: medio-lateral distance between PGs (cm) | Mean (range) | 12 (10–13) | 11 (10–13) | 0.358 |
Planned dose ipsilateral PG (Gy) | Mean | 40.7 | 34.5 | 0.148 |
SD | 11.7 | 12.2 | ||
Planned dose contralateral PG (Gy) | Mean | 27.2 | 23.0 | 0.122 |
SD | 8.1 | 7.9 | ||
Body weight | Mean pre-treatment (kg) | 70 | 78 | 0.373 |
Mean loss (%) | 7.9 | 5.6 | ||
Tube feeding | Number of patients | 15 | 6 | 0.008 |