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Table 2 Expected IQ difference after 10 years by using PBT instead of X-ray therapy

From: A comparative study of dose distribution of PBT, 3D-CRT and IMRT for pediatric brain tumors

No. Age (y) Sex Tumor Prescribed dose (Gy) Dose difference of the brain (%) (3D-CRT-PBT) Dose difference of the brain (%) (IMRT-PBT) Expected IQ difference (PBT-3DCRT) Expected IQ difference (PBT-IMRT)
1. 6 M Ependymoma 50.4 2.97 3.23 3.4 3.7
2. 6 M Ependymoma 54.0 3.29 3.08 3.8 3.5
3. 2 F Ependymoma 50.4 5.70 5.34 6.5 6.1
4. 3 F Ependymoma 59.4 8.67 9.74 9.9 11.1
5. 4 M Ependymoma 61.2 8.38 11.20 9.6 12.8
6. 3 F Ependymoma 45.0 4.64 4.59 5.3 5.2
7. 11 M Germinoma 30.6 3.92 3.34 4.5 3.8
8. 16 F Germinoma 30.6 3.67 4.07 4.2 4.6
9. 10 M Germinoma 30.6 3.73 4.28 4.3 4.9
10. 14 M Germinoma 30.6 3.92 3.83 4.5 4.4
11. 14 F Germinoma 24.0 2.88 1.34 3.3 1.5
12. 12 F Germinoma 30.6 4.62 3.52 5.3 4.0