. Author manuscript; available in PMC: 2016 Dec 9.

Published in final edited form as: Int J Radiat Oncol Biol Phys. 2015 Sep 5;93(5):1071–1076. doi: 10.1016/j.ijrobp.2015.08.040

Table 1.

Comparison of local failure rates for intermediate-risk patients in IRS-III, IRS-IV, and D9803

Patient subsets	IRS-III (%)	IRS-IV (%)	D9803 (%)
All patients	19	13	19
Histology
Embryonal	19		20
Alveolar (+ UDS for IRS-III)	17		17
Site
Parameningeal	19	16	19
Extremity	17	7	15
Bladder/prostate	14	19	14
Stage
N0	16		19
N1	32		17
Size (cm)
<5	16		10
≥5	21		25

Abbreviation: UDS = undifferentiated soft-tissue sarcoma.