Table 1 Cohort characteristics and outcomes
| Â | Overall Population | Propensity score | StD | ||||
|---|---|---|---|---|---|---|---|
NPO (n:1156) | PO (n:1154) | p-value | NPO (n: 1060) | PO (n: 1060) | p-value | ||
Age | 70.40 ± 15.85 | 70.22 ± 15.91 | 0.787 | 70.80 ± 15.70 | 70.52 ± 15.98 | 0.686 | 0.02 |
Sex (F) | 50.3 (581) | 47.4 (547) | 0.169 | 50.0% (530) | 51.1% (542) | 0.602 | 0.02 |
Site (sin) (%) | 21.3% (246) | 22.5% (260) | 0.467 | 22.2% (235) | 22.5% (238) | 0.834 | 0.01 |
Catheter | Â | ||||||
 7 Fr | 72.6% (839) | 69.2% (799) | 0.125 | 72.3% (766) | 71.8% (761) | 0.957 | 0.01 |
 8 Fr | 15.7% (182) | 16.46% (190) | 16.4% (174) | 16.9% (179) | |||
 12 Fr | 11.7% (135) | 14.3% (165) | 11.3% (120) | 11.3% (120) | |||
Laboratory findings | Â | ||||||
 PTT(s) | 29.25 ± 7.94 | 29.46 + −9.47 | 0.547 | 28.95  ± 6.97 | 29.14 ± 8.19 | 0.564 | 0.02 |
 PT(%) | 68.99 ± 20.71 | 69.47 + − 27.10 | 0.632 | 69.40  ± 20.43 | 69.31 ± 27.63 | 0.933 | 0.01 |
 PLT (109/L) | 208.65 ± 134.21 | 206.75 ± 131.23 | 0.730 | 210.19 ±  128.32 | 206.56 ± 131.84 | 0.521 | 0.03 |
Outcomes | Â | ||||||
 Failure | 3.0% (35) | 2.5% (29) | 0.451 | 2.8% (30) | 2.7% (29) | 0.895 |  |
 Hematoma | 1.9% (22) | 1.5% (17) | 0.422 | 1.7% (18) | 1.6% (17) | 0.864 |  |
 Malposition | 2.5% (29) | 2.0% (23) | 0.403 | 2.6% (28) | 2.1% (22) | 0.390 |  |
 Pneumothorax | 1.0% (11) | 0.3% (4) | 0.071 | 0.9% (10) | 0.4% (4) | 0.108 |  |
 Artery puncture | 1.7% (20) | 1.6 (18) | 0.747 | 1.6% (17) | 1.6% (17) | 1 |  |