Fig. 2.

A. List of reported adverse events following fRT graded by the CTCAE v5.0 criteria. B. GTV of meningioma patients with and without a grade 2 or higher AE. C. GTV of meningioma patients with and without a grade 3 or higher AE. D. Predicted probability plots of a grade 3 or higher AE against pre-fRT GTV based on the logistic regression model stratified by tumour location, adjusted for patient age. Blue shading represents the 95% CI. AEs- adverse events; GTV- gross tumor volume; ONS- optic nerve sheath, ST- supratentorial; CS- cavernous sinus; IT- infratentorial. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.)