highly significantp < 0.001
Using the LMR cutoff (2.083), Kaplan–Meier analysis showed a pronounced survival separation: median survival was 2.7 months in the low-LMR group (≤2.083) versus 14.5 months in the high-LMR group (>2.083), with a highly significant log-rank difference ( p < 0.001) ( Figure 5 ).