approached significancep = 0.085
Meningiomas with 1p loss designated at the 50% and 75% thresholds were associated with significantly shorter median time to recurrence compared to those designated with WHO grade 2 meningiomas (both p < 0.05) while other 1p loss thresholds approached significance (5%: p = 0.085, 25%; p = 0.079, 95%; p = 0.056).