Table 3 Comparison of patient characteristics in the derivation and external validation set
From: A prediction model for permanent pacemaker implantation after transcatheter aortic valve replacement
|  | Derivation (n = 336) | External validation (n = 48) | p value |
|---|---|---|---|
Age, yrs | 75.69 ± 7.11 | 73.79 ± 8.04 | 0.126 |
Male | 142 (42.26%) | 25 (52.08%) | 0.211 |
CAD | 271 (80.65%) | 30 (62.5%) | 0.017 |
RBBB | 20 (5.95%) | 3 (6.25%) | 0.937 |
Pre-procedural TnT, ng/ml | 0.07 ± 0.20 | 0.03 ± 0.03 | 0.002 |
Post-procedural TnT, ng/ml | 0.34 ± 0.45 | 0.24 ± 0.16 | 0.005 |
Pre-procedural AVA, cm2 | 0.71 ± 0.22 | 0.72 ± 0.32 | 0.885 |
Post-procedural AVA, cm2 | 2.30 ± 0.61 | 2.07 ± 0.63 | 0.022 |
PNA, cm2 | 5.21 ± 0.95 | 4.78 ± 0.97 | 0.006 |
Implantation depth, mm | 5.22 ± 3.73 | 5.46 ± 3.58 | 0.665 |
New-onset LBBB | 9.82% | 8.33% | 0.948 |
Incidence of PPMI | 14.29% | 12.50% | 0.732 |
PLOS, day(s) | 7.23 ± 3.24 | 7.40 ± 5.92 | 0.230 |