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Comparison of CTCAE version 3 grade 2+ late adverse events from IMRT in RTOG-0539 (meningioma) versus 3DCRT on RTOG-0424 (low grade glioma).
| Trial | n | Grade 2+ | Grade 2 | Grade 3 | Grade 4 |
|---|---|---|---|---|---|
| RTOG 0539 (IMRT) | 43 | 25.6% | 25.6% | 0 | 0 |
| RTOG 0424 (3DCRT) | 52 | 43% | 33% | 8% | 2% |
