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. Author manuscript; available in PMC: 2015 Oct 1.
Published in final edited form as: Semin Radiat Oncol. 2014 Oct;24(4):265–272. doi: 10.1016/j.semradonc.2014.06.007

Figure 2.

Figure 2

Full-scale IQ distribution in patients with medulloblastoma from Grill et al.57 Long-term neurocognitive deficits are observed with radiation therapies in a dose-dependent manner. In this study, patients treated with 35 Gy of craniospinal (CSI) radiation demonstrated significantly poorer performance on the full-scale IQ testing than patients treated with 25 Gy of CSI. Number of patients in group CSI = 25 Gy is 11. Number of patients in group CSI = 35 Gy is 8. FSIQ, full-scale IQ.