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. 2021 May 13;24(1):90–98. doi: 10.1093/neuonc/noab108

Fig. 2.

Fig. 2

Survival analysis after BNCT and after HGM diagnosis. (A, B) Kaplan–Meier curves after BNCT and after diagnosis. (A) The mOS after BNCT for the sum of the grade 2 and 3 cases with 95% CI was 29.6 (95% CI: 16.1–40.4) months. The mOS after BNCT for the grade 2 cases was 44.4 (95% CI: 27.4–not determined) months, and that for the grade 3 cases was 21.6 (10.6–30.6) months (P = .0009, log-rank test). (B) The mOS value for the sum of the grade 2 and 3 groups after the diagnosis was 98.4 (95% CI: 68.7–169.4) months. The mOS after diagnosis for the grade 2 group was 224.4 (95% CI: 75.9–325.3) months, and that for the grade 3 group was 69.6 (42.8–120.3) months (P = .0111, log-rank test). Abbreviations: BNCT = boron neutron capture therapy; HGM = high-grade meningioma; mOS = median overall survival.