63 4 Table 1. Subject characteristics of patients with head and neck cancer and healthy subjects Characteristics Patients (n = 33) Healthy subjects (n = 40) p-value Age (median, IQR) 65 (12) 31 (28) <0.001*† Sex Male Female 30 (91%) 3 (9%) 20 (50%) 20 (50%) 0.002**‡ Tumor site Oropharynx Larynx Oral cavity Hypopharynx Unknown primary 15 (46%) 10 (30%) 5 (15%) 2 (6%) 1 (3%) NA - Tumor Stage I II III IV 7 (21%) 9 (27%) 2 (6%) 15 (46%) NA - Primary Treatment RT CRT Surgery Surgery with PORT 17 (52%) 11 (33%) 3 (9%) 2 (6%) NA - CRT: Chemoradiotherapy, IQR: Interquartile Range, PORT: Post-Operative Radiotherapy, RT: Radiotherapy *: p<0.001, **: p<0.05, †: Mann-Whitney U test; ‡: Chi-square test
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