A. Pre and post procedure VCSS in patients < 65 years old and ≥ 65 years old. Note: Only procedures with both a pre and post procedural VCSS are included (N=2,623).
B. Pre and post procedure PROs in patients < 65 years old and ≥ 65 years old. Note: Only procedures with both a pre and post procedural PROs are included (N=2,342).
C. Overall mean improvement of pre and post procedural clinical score and patient reported outcomes in patients < 65 years old compared to patients ≥ 65 years old.