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Table 4 Factors affecting in overall response rate

From: Defining the optimal dose of radiation in leukemic patients with extramedullary lesions

Factors ( 2 × 2 analysis) Response (CR + PR) Non-response (SD + PD) Total p -value
Primary disease Yes 23 4 27 0.128
AML No 9 6 15  
RT site Yes 14 2 16 0.270
Soft tissue No 18 8 26  
Concurrent Yes 8 1 9 1.000
Chemotherapy No 24 9 33  
Initial size Yes 13 9 22 0.010*
BP ≥ 10 cm2 No 19 1 20  
Initial size Yes 14 7 21 0.277
LD ≥ 6.0 cm No 18 3 21  
Follow up time Yes 23 7 30 1.000
≥ 2 weeks No 9 3 12  
Total dose Yes 16 1 17 0.031*
≥ 25 Gy No 16 9 25  
BED10 Yes 17 1 18 0.026*
≥ 30 Gy No 15 9 24  
  1. Abbreviations: AML = Acute myeloid leukemia, BP = Bidimensional product, LD = Largest dimension, BED = Biologic effective dose
  2. *Statistically significant factors