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Table 1 The characteristics of 770 patients with nasopharyngeal carcinoma

From: Nasopharyngeal carcinoma with paranasal sinus invasion: the prognostic significance and the evidence-based study basis of its T-staging category according to the AJCC staging system

Characteristics Number of patients(%)
Sex  
Male 590(76.6%)
Female 180(23.4%)
Age  
≥50 years old 255(33.1%)
<50 years old 515(69.9%)
Histologic type  
WHO II/III 755(98.1%)
WHO I 15(1.9%)
T classification  
T1 121(15.7%)
T2 115(14.9%)
T3 346(44.9%)
T4 188(24.5%)
N classification  
N0 83(10.8%)
N1 462(60.0%)
N2 203(26.4%)
N3 22(2.8%)
Stage  
I 120(15.6%)
II 234(30.4%)
III 302(39.2%)
IVA ~ IVB 114(14.8%)