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Table 1 Patient and treatment characteristics (n = 53)

From: Outcome and patterns of failure after postoperative intensity modulated radiotherapy for locally advanced or high-risk oral cavity squamous cell carcinoma

Characteristics n (%)
Age (years)#  
 ≤ 60 25 (47)
 > 60 28 (53)
Gender  
 Female 17 (32)
 Male 36 (68)
Karnowsky PS  
 > 70 42 (79)
 ≤ 70 11 (21)
Site  
 Tongue 22 (41)
 Floor of mouth 17 (32)
 Alveolus and Gingiva 11 (21)
 Others* 3 (6)
Tumor classification  
 pT1 8 (15)
 pT2 25 (47)
 pT3 5 (10)
 pT4 15 (28)
Nodal classification  
 cN0** 2 (4)
 pN0 18 (34)
 pN1 10 (19)
 pN2 22 (41)
 pN3 1 (2)
Grading  
 Moderate (G2) 37 (70)
 Poor (G3) 16 (30)
Resection margins  
 R0 15 (28)
 Close (< 3mm) 25 (47)
 R1 13 (25)
Surgery to primary tumor  
 Wide local excision 9 (17)
 Partial glossectomy 18 (34)
 Hemiglossectomy 4 (7)
 Mandibular resection 4 (7)
 Partial maxillectomy 3 (6)
 Composite oral cavity resection 15 (29)
Neck dissection##  
 None 2 (4)
 Ipsilateral 28 (53)
 Bilateral 23 (43)
Gastrostomy tube  
 None 28 (53)
 Used 25 (47)
  1. Abbreviations: PS performance status; # median 60 years (range, 40–88 years); * buccal mucosa n=2 and hard palate n=1; **Two patients (4%) did not undergo a neck dissection; ## Of the 51 patients who underwent a neck dissection a median of 44 nodes (range, 14–101 nodes) were removed.