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Table 2 Comparison of local treatment modality in CCLG and GPOH

From: Survival is influenced by approaches to local treatment of Ewing sarcoma within an international randomised controlled trial: analysis of EICESS-92

  Number of patients (percentage) p value
CCLG GPOH
N = 210 N = 437
Local treatment modality
 Surgery alone 70 (33) 71 (16) < 0.001a
 Radiotherapy alone 81 (39) 85 (19)
 Radiotherapy then surgery 6 (3) 195 (45)
 Surgery then radiotherapy 32 (15) 60 (14)
 None (progressive disease) 18 (9) 7 (2)
 Unknown 3 (1) 19 (4)
Localised disease only
 Surgery alone 59 (39) 63 (19) < 0.001
 Radiotherapy alone 53 (35) 55 (17)
 Radiotherapy then surgery 5 (3) 147 (45)
 Surgery then radiotherapy 24 (16) 47 (14)
 None (progressive disease) 9 (6) 3 (1)
 Unknown 0 14 (4)
  1. ap value for the association between type of local treatment and study group. The p value is also < 0.001 if ‘none’ or ‘unknown’ are excluded