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Table 1 Baseline characteristics of the 37 patients and controls

From: Changes in plasma EBV-DNA and immune status in patients with nasopharyngeal carcinoma after treatment with intensity-modulated radiotherapy

Clinical parameters NPC patients
(N = 37)
Healthy Donors
(N = 40)
 
Age (years)
 Median (range) 53 (37–90) 50 (20–73) p = 0.072
> = 53 19 > = 50 22
< 53 18 < 50 18
Gender
 Male 25 23 p = 0.362
 Female 12 17
Clinical stage
 I + II (early stage) 16   
 III + IV (late stage) 21  
Tumor stagea
 T1 + T2 23   
 T3 + T4 14  
Lymph node stagea
 N0 5   
 N1 + N2 + N3 32  
Metastasis stagea
 Mo 34   
 M1 3  
Tumor differentiation
 Keratinizing 3   
 Non-Keratinizing 34  
  1. NPC nasopharyngeal carcinoma
  2. aAccording to the AJCC tumor-node-metastases (TNM) staging system, 2010