| Before propensity score matching | |||
---|---|---|---|---|
Group A | Group B | P value | Standardized difference | |
Number of patients (n) | 102 | 102 | Â | Â |
Age (years) | 73.7 ± 8.7 | 73.7 ± 8.3 | 0.97 | 0.02 |
Sex, male | 84 (82.4%) | 84 (82.3%) | 1.00 | 0.00 |
Anticoagulants | 21 (20.6%) | 40 (39.2%) | 0.006 | 0.42 |
Antiplatelet agents | 85 (83.3%) | 69 (67.6%) | 0.014 | 0.37 |
Operators of trainees | 72 (70.6%) | 50 (49.0%) | 0.003 | 0.45 |
After propensity score matching | ||||
Number of patients (n) | 80 | 80 | Â | Â |
Age (years) | 73.2 ± 8.5 | 73.4 ± 8.3 | 0.87 | 0.07 |
Sex, male | 66 (82.5%) | 66 (82.5%) | 1.00 | 0.00 |
Anticoagulant agents | 18 (22.5%) | 20 (25.0%) | 0.85 | 0.06 |
Antiplatelet agents | 63 (78.8%) | 64 (80.0%) | 1.00 | 0.03 |
Operators of trainees | 50 (62.5%) | 48 (60.0%) | 0.87 | 0.05 |