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Table 1 Baseline characteristics in the entire cohort of 2,626 patients with nasopharyngeal carcinoma (NPC)

From: Pretreatment platelet count improves the prognostic performance of the TNM staging system and aids in planning therapeutic regimens for nasopharyngeal carcinoma: a single-institutional study of 2,626 patients

Patient characteristic No. of patients [ n (%)] PLT count [ n (%)]
≤300 × 10 9 /L >300 × 10 9 /L P value
Age (years)     0.202
  ≤45 1,308 (49.8) 1,096 (49.3) 212 (52.7)  
  >45 1,318 (50.2) 1,128 (50.7) 190 (47.3)  
Sex     <0.001
  Male 2,015 (76.7) 1,740 (78.2) 275 (68.4)  
  Female 611 (23.3) 484 (21.8) 127 (31.6)  
TNM classification     0.021
  I 157 ( 6.0) 134 ( 6.0) 23 ( 5.7)  
  II 899 (34.2) 778 (35.0) 121 (30.1)  
  III 1,036 (39.5) 882 (39.7) 154 (38.3)  
  IV 534 (20.3) 430 (19.3) 104 (25.9)  
T category     <0.001
  T1 516 (19.6) 449 (20.2) 67 (16.7)  
  T2 1,010 (38.5) 870 (39.1) 140 (34.8)  
  T3 655 (24.9) 557 (25.0) 98 (24.4)  
  T4 445 (16.9) 348 (15.6) 97 (24.1)  
N category     0.616
  N0 669 (25.5) 566 (25.4) 103 (25.6)  
  N1 1,081 (41.2) 920 (41.4) 161 (40.0)  
  N2 773 (29.4) 647 (29.1) 126 (31.3)  
  N3 103 (3.9) 91 ( 4.1) 12 (3.0)  
Treatment     0.652
  CRT 1,216 (46.3) 1,034 (46.5) 182 (45.3)  
  RT 1,410 (53.7) 1,190 (53.5) 220 (4.7)  
Total 2,626 2,223 402  
  1. PLT, platelet; CRT, chemoradiotherapy; RT, radiotherapy.