Patients with a higher tumor burden (>6.9 cm 2 ) tended to have poorer OS compared to those with a lower burden (≤6.9 cm 2 ), though this difference did not reach statistical significance ( P < .055).Variables such as sex, deep brain structure involvement, and CSF protein elevation—previously reported as prognostic markers—were not significant in our cohort ( Supplementary Table S1 ).
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Time matters: The prognostic impact of diagnostic delay on survival in primary central nervous system lymphoma-a single-center, retrospective real-world study.
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near-significantP < .061
Renal function was also included in the multivariate model due to a near-significant association ( P < .061).
Variables demonstrating statistical significance or approaching significance in the univariate analysis were incorporated into a multivariate analysis employing the Cox proportional hazards regression model.