Table 2.
Procedural characteristics before and after propensity score matching.∗
| Variable | All patients | Propensity matched sample | ||||
|---|---|---|---|---|---|---|
| Without DM | With DM | P value | Without DM | With DM | P value | |
| Number of lesions | 1704 | 956 | 649 | 669 | ||
| Lesion type | 0.610 | 0.587 | ||||
| Instent restenosis | 267 (15.67%) | 157 (16.42%) | 116 (17.87%) | 112 (16.74%) | ||
| De novo lesions | 1437 (84.33%) | 799 (83.58%) | 533 (82.13%) | 557 (83.26%) | ||
| Treated vessel | 0.541 | 0.729 | ||||
| Left anterior descending coronary artery | 775 (45.48%) | 410 (42.89%) | 274 (42.22%) | 284 (42.45%) | ||
| Left circumflex coronary artery | 545 (31.98%) | 310 (32.43%) | 200 (30.82%) | 215 (32.14%) | ||
| Left main coronary artery | 9 (0.53%) | 3 (0.31%) | 5 (0.77%) | 2 (0.30%) | ||
| Right coronary artery | 363 (21.30%) | 226 (23.64%) | 163 (25.12%) | 163 (24.36%) | ||
| Bypass graft | 12 (0.70%) | 7 (0.73%) | 7 (1.08%) | 5 (0.75%) | ||
| Number of lesions treated by DCB (per patient) | 0.417 | 0.372 | ||||
| 1 | 1294 (86.85%) | 689 (84.44%) | 511 (88.41%) | 497 (85.99%) | ||
| 2 | 180 (12.08%) | 115 (14.09%) | 63 (10.90%) | 72 (12.46%) | ||
| 3 | 14 (0.94%) | 11 (1.35%) | 4 (0.69%) | 8 (1.38%) | ||
| 4 | 2 (0.13%) | 1 (0.12%) | 0 (0.00%) | 1 (0.17%) | ||
| Total occlusion | 201 (11.80%) | 116 (12.13%) | 0.796 | 77 (11.86%) | 78 (11.66%) | 0.908 |
| Intracoronary thrombus | 8 (0.47%) | 4 (0.42%) | 0.850 | 4 (0.62%) | 3 (0.45%) | 0.722 |
| Diffuse vessel disease | 383 (22.48%) | 208 (21.76%) | 0.669 | 162 (24.96%) | 151 (22.57%) | 0.308 |
| Ostial lesion | 310 (18.19%) | 169 (17.68%) | 0.740 | 105 (16.18%) | 118 (17.64%) | 0.480 |
| Bifurcation lesion | 552 (32.39%) | 292 (30.54%) | 0.325 | 201 (30.97%) | 207 (30.94%) | 0.991 |
| Lesion preparation | 1704 (100%) | 956 (100%) | 649 (100%) | 669 (100%) | ||
| Semicompliant balloon | 1119 (65.67%) | 667 (69.77%) | 0.031 | 446 (68.72%) | 475 (71.00%) | 0.367 |
| NSE | 459 (26.94%) | 264 (27.62%) | 0.706 | 197 (30.35%) | 182 (27.20%) | 0.207 |
| Cutting balloon | 521 (30.58%) | 282 (29.50%) | 0.561 | 186 (28.66%) | 202 (30.19%) | 0.541 |
| DWB | 67 (3.93%) | 39 (4.08%) | 0.852 | 20 (3.08%) | 28 (4.19%) | 0.285 |
| Noncompliant balloon | 454 (26.64%) | 280 (29.29%) | 0.143 | 168 (25.89%) | 190 (28.40%) | 0.305 |
| ROTA | 28 (1.64%) | 26 (2.72%) | 0.059 | 12 (1.85%) | 17 (2.54%) | 0.392 |
| Number of DCBs used (per lesion) | 1.10 ± 0.36 | 1.11 ± 0.36 | 0.603 | 1.11 ± 0.36 | 1.11 ± 0.36 | 0.716 |
| Mean DCB diameter (mm) | 2.79 ± 0.47 | 2.75 ± 0.47 | 0.026 | 2.75 ± 0.47 | 2.75 ± 0.48 | 0.819 |
| Length of DCB balloon (mm) | 24.50 ± 12.34 | 24.98 ± 12.46 | 0.077 | 25.03 ± 12.47 | 25.03 ± 12.16 | 0.569 |
| Inflation pressure (bar) | 8.36 ± 2.84 | 8.32 ± 2.19 | 0.615 | 8.26 ± 2.93 | 8.23 ± 1.35 | 0.404 |
| Bailout stenting | 60 (3.52%) | 38 (3.97%) | 0.551 | 20 (3.08%) | 24 (3.59%) | 0.609 |
∗Plus–minus values are means ± SD. DM: diabetes mellitus; DCB: drug-coated balloon; NSE: noncompliant scoring balloon; DWB: dual wire balloon; ROTA: rotational atherectomy.