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Table 1 Characteristics of 307 patients with primary thymoma and their association with recurrence

From: Long-term outcomes of 307 patients after complete thymoma resection

Variable Whole cohort (n = 307) Patients with recurrence (n = 52)a P
Age (years)    0.314
  ≤60 244 (79.5) 44 (18.0)  
  >60 63 (20.5) 8 (12.7)  
Sex    0.942
 Female 149 (48.5) 25 (16.8)  
 Male 158 (51.5) 27 (17.1)  
Tumor size (cm)    0.950
  ≤6.5 170 (55.4) 29 (17.1)  
  >6.5 137 (44.6) 23 (16.8)  
Myasthenia gravis    0.749
 Yes 58 (18.9) 9 (15.5)  
 No 249 (81.1) 43 (17.3)  
WHO histological classification    <0.001
 A 19 (6.1) 1 (5.3)  
 AB 99 (32.2) 5 (5.1)  
 B1 61 (19.9) 7 (11.5)  
 B2 83 (27.0) 26 (31.3)  
 B3 45 (14.7) 13 (28.9)  
Masaoka stage    <0.001
 I 74 (24.1) 3 (4.1)  
 II 170 (55.4) 17 (10.0)  
 III 52 (16.9) 24 (46.2)  
 IVa 11 (3.6) 8 (72.7)  
Surgical approach    0.590
 Transsternal 97 (31.6) 14 (14.4)  
 Transthoracic 140 (45.6) 27 (19.3)  
 VATS 70 (22.8) 11 (15.7)  
Postoperative radiotherapy    0.006
 Yes 142 (46.3) 15 (10.6)  
 No 165 (53.7) 37 (22.4)  
  1. All values are presented as number of patients followed by percentage in parentheses
  2. WHO World Health Organization, VATS video-assisted thoracoscopic surgery
  3. aThe percentages in this column was calculated according to the following formula: the number of patients with recurrence/the number of relevant patients in the whole cohort