Patient characteristics and treatment modalities

Characteristics
Number of patients60
Mean age, yrs ± SD62.34 ± 9.18
Sex
    Male49 (81.7%)
    Female11 (18.3%)
Primary tumor site
    Base of tongue24 (40.0%)
    Tonsil14 (23.3%)
    Larynx7 (11.7%)
    Less common/unknown sites15 (25.0%)
T staging
    Tx14 (23.3%)
    T02 (3.3%)
    T12 (3.3%)
    T215 (25.0%)
    T39 (15.0%)
    T418 (30.0%)
N staging
    N12 (3.3%)
    N251 (85.0%)
    N37 (11.7%)
M staging
    M060 (100%)
p16 expression
    Positive21 (35.0%)
    Negative11 (18.3%)
    Unknown (insufficient specimen)28 (46.7%)
Treatment
    Radiotherapy + concurrent chemotherapy39 (65.0%)
    Induction chemotherapy + radiotherapy + concurrent chemotherapy21 (35.0%)