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. 2023 Apr 24;41:100631. doi: 10.1016/j.ctro.2023.100631

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© 2023 The Authors. Published by Elsevier B.V. on behalf of European Society for Radiotherapy and Oncology.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).

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Fig. 1 — (Colour figure) A. Kaplan-Meier (KM) survival curve of PFS post-fRT for meningiomas stratified by location. B. Forest plot of results from univariable Cox proportional hazards model in the complete cohort of fRT-treated meningiomas. C. KM survival curve of all meningiomas with available volumetric treatment data (GTV) stratified based on a GTV cut-off that optimizes the Youden index. D. Forest plot of results from the multivariable Cox proportional hazards model of meningiomas with volumetric data from all tumor locations. E. KM survival curve of meningiomas with volumetric data excluding those in optic nerve sheath (ONS) or cavernous sinus (CS) locations. F. Forest plot of results from multivariable Cox proportional hazards model of meningiomas with volumetric data excluding ONS and CS meningiomas. PFS- progression-free survival; CS- cavernous sinus; IF- infratentorial; ONS- optic nerve sheath; ST- supratentorial; RT- radiotherapy; cGy- centigray; GTV- gross tumor volume; CTV- clinical target volume. *p < 0.05 where group sizes are sufficiently large to draw statistical conclusions.