Table 1 Distribution of sex, age, concomitant chemotherapy and bone surgery with regard to tumour site
From: Potential risk factors for jaw osteoradionecrosis after radiotherapy for head and neck cancer
Tumour site | Number of patients (proportion of the cohort) | Proportion of females | Average age in years (standard deviation, range) | Chemotherapy (proportion of tumour localization) | Bone surgery (proportion of tumour localization) |
|---|---|---|---|---|---|
Nasopharynx | 43 (5.5 %) | 37.2 % | 55.9 (±16.4, 22–90) | 31 (72 %) | 0 |
Tonsil | 157 (20.2 %) | 24.2 % | 57.6 (±10.5, 24–84) | 76 (48 %) | 9 (6 %) |
Uvula | 6 (0.8 %) | 16.7 % | 67.6 (±8.1, 63–76) | 1 (17 %) | 0 |
Tongue base | 63 (8.1 %) | 22.2 % | 58.4 (±10.5, 39–82) | 34 (54 %) | 4 (6 %) |
Oral cavity | 259 (33.4 %) | 21.6 % | 58.9 (±12.1, 21–89) | 107 (41 %) | 73 (28 %) |
Parotid gland | 34 (4.4 %) | 40 % | 62.4 (±13.6, 27–84) | 6 (18 %) | 3 (9 %) |
Hypopharynx/larynx | 214 (27.6 %) | 11.3 % | 59.2 (±9.7, 37–86) | 110 (51 %) | 1 (0.5 %) |