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Table 1 Patient Characteristics in Different Caseload Groups (n = 1225)

From: Survival rate in nasopharyngeal carcinoma improved by high caseload volume: a nationwide population-based study in Taiwan

  NPC caseload group  
Variable Low
(4-16)
(n= 424)
Medium
(17-34)
(n= 394)
High
(35-152)
(n= 407)
p
Age     0.037
   35-44 years 136(32) 90(23) 103(25)  
   45-54 years 118(28) 143(36) 145(36)  
   55-64 years 93(22) 100(25) 99(24)  
   65-74 years 59(14) 51(13) 48(12)  
    75 years 18(4) 10(3) 12(3)  
Gender     0.389
   Male 316(75) 285(72) 286(70)  
   Female 108(25) 109(28) 121(30)  
Charlson Comorbidity Index score     < 0.001
< 4 216(51) 229(58) 274(67)  
4 208(49) 165(42) 133(33)  
Treatment modality     < 0.001
   Radiotherapy 278(66) 271(69) 322(79)  
   Chemoradiotherapy 146(34) 123(31) 85(21)  
Geographic location     < 0.001
   North 266(63) 240(61) 317(78)  
   Central 93(22) 61(15) 43(11)  
   Southern and Eastern 65(15) 93(24) 47(11)  
Enrollee category     0.008
   EC 1-2 168(40) 133(34) 183(45)  
   EC 3 181(43) 172(44) 164(40)  
   EC 4 75(18) 89(23) 60(15)  
  1. Values are given as number (percentage).