borderline significantP = 0.051
Conversely, in patients with collateral status grade 3, bridging therapy demonstrated no statistically significant association with functional independence (adjusted OR [95% CI]: 0.473 [0.121–1.842], P = 0.280), whereas the improvement in global functional outcomes showed borderline significant trend (adjusted common OR [95% CI]: 0.391 [0.150–0.991], P = 0.051) that did not reach the pre-specified statistical threshold (Table 4 and Fig. 2).