In multivariable analysis, lower RV systolic performance determined by RV FAC ≤ 42.5% emerged as a primary independent predictor of recurrence ( p = 0.003), while the LA contraction strain/LAVI ratio demonstrated a strong trend towards significance ( p = 0.076).
Kaplan–Meier curves ( Supplementary Figure S2 ) illustrated that patients with RV FAC ≤ 42.5% showed a descriptive trend toward earlier recurrence compared to those with higher values, although the difference did not reach statistical significance in the Log-rank test ( p = 0.348) or the univariable Cox proportional HR model (HR 1.38; 95% CI 0.63–3.02; p = 0.416). 4.
Variables with a p -value below 0.10 were considered marginally significant and were subsequently entered into a multivariable logistic regression model to determine independent predictors.