approaching significanceP = 0.1355
A borderline association approaching significance was observed among individuals diagnosed with AF (OR = 1.06, 95% CI: 0.98–1.15, P = 0.1355), implying a possible variation in the impact of RCII on stroke severity depending on AF status; however, statistical significance was not achieved in either the non-AF ( P = 0.5005) or AF group ( P = 0.1355) (Fig. 1 a).