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Table 1 Patients characteristics

From: Diffusion-weighted magnetic resonance imaging (DWMRI) of head and neck squamous cell carcinoma: could it be an imaging biomarker for prediction of response to chemoradiation therapy

Characteristic Number (%)
Total number of patients 46
Age (mean ± SD) 50.8 ± 16.6
Range 11–78
Gender  
• Male 27(58.7%)
• Female 19(41.3%)
Tumor sites  
• Larynx 16 (34.8%)
• Nasopharynx 9 (19.6%)
• Oropharynx 1 (2.2%)
• Hypopharynx 10 (21.7%)
• Oral tongue 5 (10.9%)
• Sinonasal 3 (6.5%)
• Palatal 1 (2.2%)
• Upper gingival 1 (2.2%)
Histologic grade of differentiation  
• Well differentiated 5 (10.9%)
• Moderately differentiated 29 (63%)
• Undifferentiated 12 (26.1%)
TNM  
 T1 3 (6.5%)
 T2 3 (6.5%)
 T3 13 (28.3%)
 T4/T4a 22 (47.8%)
 T4b 5 (10.9%)
 N0 21 (45.7%)
 N1 5 (10.9%)
 N2 16 (34.8%)
 N3 4 (8.7%)
Stage groups  
 II 2 (4.3%)
 III 11 (23.9%)
 IVA 23 (50%)
 IVB 10 (21.7%)
Treatment  
• Concomitant chemoradiation therapy 39 (84.4%)
• Radiation therapy 7 (15.2%)
• Neoadjuvant chemotherapy:  
o Yes 32 (69.6%)
o No 14 (30.4%)