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Table 1 Patient and disease characteristics in oral cavity cancer (OCC, N = 160)

From: Follow up after IMRT in oral cavity cancer: update

Parameters PATIENTS
  Postoperative IMRT Definitive IMRT
N patients   116 44
concomittant systemic therapy   78 (67%) 30 (68%)
Induction chemotherapy   2 (2%) 5 (11%)
Gender, male / female   69% / 31% 57% / 43%
Age, mean / median (range)   59 / 58 (25–90) years 66 / 64 (41–85) years
WHO performance status 0, 1, 2   83%, 13%, 4% 62%, 34%, 4%
Histology: squamous cell carcinoma 114 (98%) 43 (98%)
adenoid cystic carcinoma (ACC) 0 1
Merkel cell carcinoma 2 (2%) 0
Localization: T/FoM 74 (64%) 30 (68%)
mandible/alveolar process/TR 32 (28%) 7 (16%)
buccal mucosa (cheek) 8 (7%) 4 (9%)
others (lip, palate) 2 (2%) 3(7%)
T stage: rT0 9 (8%) 0
rT+ 17 (15%) 10 (23%)
T1 16 (14%) 1 (2%)
T2 35 (30%) 6 (14%)
T3 10 (9%) 6 (14%)
T4 29 (25%) 21 (48%)
N stage: rN0 5 (4%) 2 (5%)
rN+ 15 (13%) 2 (5%)
N0 36 (31%) 12 (27%)
N 1a-2b 44 (38%) 13 (30%)
N2c 10 (9%) 15 (34%)
N3 1 (1%) 0
Stage I 5 (4%) 0
II 10 (9%) 0
III 17 (15%) 1 (2%)
IV 57 (49%) 33 (75%)
nodal or primary recurrence 27 (23%) 10 (23%)
Follow up, mean/median (range) all patients 33 / 18 (2–101) months 20 / 12 (1–87) months
alive patients 35 / 35 (2–101) months 33 / 22 (5–87) months
dead patients 24 / 22 (5–66) months 12 / 8 (3–27) months