Particle Therapy 2017

702-703 / 2605

Reducing K2 risk…
● MHG, 1973-2001
● Conven3onal P tehno.
● P:558 matched with XR:558 (SEER)
● Med FUp: 6.7 Y
● K2 XR: 42 (7.5%)
● K2 P: 29 (5.2%)
● Adjusted risk: .52 (p .009)
● Children: no K2
Chung CS et al, IJROBP, 2012