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Table 2 Comparison of fractionation type, group with fracture versus group without fracture

From: Assessment of the risk factors for impending fractures following radiotherapy for long bone metastases using CT scan-based virtual simulation: a retrospective study

  N (%) Fractures (%) Without fractures (%)
Number of lesions radiated 47 10 37
Dose received    
Single fraction 22 (46.8) 5 (22.7) 17 (77.3)
7 Gy 3 (6.4) --- 3 (100)
8 Gy 19 (40.4) 5 (26.3) 14 (73.7)
Multiple fractions 25 (53.2) 5 (20) 20 (80)
15 Gy 1 (2.1) --- 1 (100)
20 Gy 13 (27.7) 3 (23.1) 10 (76.9)
25 Gy 3 (6.4) --- 3 (100)
30 Gy 8 (17.0) 2 (25) 6 (75)