Fig. 2
From: Integrative assessment of brain and bone invasion in meningioma patients
Kaplan-Meier curves for progression-free survival in regard to a) World Health Organisation (WHO) grading; b) Molecular Immunology Borstel (MIB-1) immunohistochemistry (groups were separated by the median); c) intention of radiotherapy (RT) treatment (primary radiotherapy vs. adjuvant radiotherapy vs. salvage surgery and subsequent adjuvant radiation vs. salvage radiotherapy; the p-value is related to the primary and adjuvant versus the salvage groups); d) localization (skull base and optic nerve sheath meningiomas versus other locations)