Table 2 Clinical factors associated with spinal leptomeningeal relapse analysed using chi-square test of independence

Age at initial diagnosis

<50 vs. ≥ 50 years old

p < 0.01

Initial tumour site

Temporal lobe vs. other locations

p < 0.01

Ki67

< 30% vs. ≥ 30%

p = 0.38

Extent of Surgery

Near-Total vs. Subtotal vs. Biopsy

p = 0.42

MGMT

Unmethylated vs. Methylated

p < 0.01

ECOG

0,1 vs. 2,3,4

p = 0. 21