Statistical Analysis
Baseline patient characteristics were compared using a T-test between
the two steerable sheath groups. A hierarchical regression analysis was
performed for the procedural parameters (mean CF, RF time per lesion, CF
variability) using a linear-mixed effect model by adjusting for
individual lesions and each patient on R software (version 1.1, RStudio
Inc, Boston, MA). Time-sequence data to determine inefficient contact
lesions was analysed using MATLAB (version 9.4, MathWorks, Natick, MA);
significance was evaluated using a F-test on R.