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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.