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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
  1. CRT chemoradiotherapy group, RT radiotherapy alone group, pCT planning CT, PG(s) parotid gland(s)