Table 1

Patient characteristics
Study Historical control Total
Patient No 23 29 52
Age
Median 66 60 63
Range 25–92 26–90 25–92
Sex
Male 21 28 49
Female 2 1 3
Squamous histology 22 30 52
Tumor sites
Oropharynx 5 10 15
Oral cavity 7 8 15
Parotid (primary or metastates) 3 1 4
Larynx 4 6 10
Hypopharynx 2 2 4
Unknown 1 2 3
Nasopharynx 1 0 1
Stages
I 0 2 2
II 2 1 3
III 9 12 21
IVA 6 10 16
IVB 3 4 7
IVC 2 0 2
Recurrence 1 0 1
T stages
Tx 1 2 3
T1 1 4 5
T2 13 10 23
T3 3 8 11
T4 4 5 9
Recurrence 1 0 1
Neck nodes
N0 3 8 11
N1 13 9 22
N2 4 10 14
N3 2 2 4
Recurrence 1 0 1
Treatement
Radiotherapy alone 5 5 10
Chemoradiation 18 24 42

Study: Mean parotid dose constraints less than 20 Gray; Control: Mean parotid dose constraints 26 Gy.

Nguyen et al.

Nguyen et al. BMC Cancer 2012 12:175   doi:10.1186/1471-2407-12-175

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