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Table 1 Patient and treatment characteristics; N = 36 patients

From: Cochlea sparing effects of intensity modulated radiation therapy in head and neck cancers patients: a long-term follow-up study

Age (years), median (range)

 

  Short-term

59 (32–78)

  Long-term

66 (39–85)

Gender

 

  Male

25 (70%)

  Female

11 (30%)

Audiological follow-up, median

 

  Short-term (months)

3.5 (1.0–14.1)

  Long-term (years)

7.6 (3.7–9.3)

Dose to cochlea in Gray

 

  Mean

17.8

  Median

13.1

  Range

1.0–66.6

Primary tumor site

 

  Parotid gland

11 (30%)

  Oropharynx

9 (25%)

  Larynx

8 (22%)

  Oral cavity

3 (8%)

  Maxillary sinus

1 (3%)

  Submandibular gland

1 (3%)

  Nasal cavity

1 (3%)

  External ear

1 (3%)

  Unknown primary

1 (3%)

T classification

 

  1

7 (19%)

  2

18 (50%)

  3

2 (5.5%)

  4

2 (5.5%)

  Unknown primary

1 (3%)

  Not applicable*

6 (17%)

N classification

 

  0

22 (61%)

  1

4 (11%)

  2

4 (11%)

  Not applicable*

6 (17%)