Table 3.
Baseline Characteristics of Eligible Individuals From an Observational Emulation of a Target Trial of Thrombus Aspiration Versus No Thrombus Aspiration, SWEDEHEART Registry, 2007–2016
| Thrombus Aspiration (n = 3,462) | No Thrombus Aspiration (n = 14,760) | |||
|---|---|---|---|---|
| Characteristic | No. | % | No. | % |
| Age, yearsa | 66.0 (57.0, 74.0) | 68.0 (60.0, 77.0) | ||
| Female sex | 887 | 25.6 | 4,422 | 30.0 |
| Hospital | ||||
| Borås | 15 | 0.4 | 143 | 1.0 |
| Danderyd | 134 | 3.9 | 363 | 2.5 |
| Eskilstuna | 67 | 1.9 | 398 | 2.7 |
| Falun | 211 | 6.1 | 638 | 4.3 |
| Gävle | 333 | 9.6 | 506 | 3.4 |
| Halmstad | 13 | 0.4 | 267 | 1.8 |
| Helsingborg | 22 | 0.6 | 90 | 0.6 |
| Huddinge | 28 | 0.8 | 131 | 0.9 |
| Jönköping | 49 | 1.4 | 679 | 4.6 |
| Kalmar | 84 | 2.4 | 566 | 3.8 |
| Karlskrona | 165 | 4.8 | 619 | 4.2 |
| Karlstad | 65 | 1.9 | 778 | 5.3 |
| Karolinska Solna | 255 | 7.4 | 1,099 | 7.4 |
| Kristianstad | 4 | 0.1 | 144 | 1.0 |
| Linköping | 251 | 7.3 | 713 | 4.8 |
| Lund | 785 | 22.7 | 1,929 | 13.1 |
| Malmö | 32 | 0.9 | 199 | 1.3 |
| Sahlgrenska | 164 | 4.7 | 1,387 | 9.4 |
| Skövde | 50 | 1.4 | 487 | 3.3 |
| St Görans | 42 | 1.2 | 62 | 0.4 |
| Sunderbyn | 19 | 0.5 | 281 | 1.9 |
| Sundsvall | 26 | 0.8 | 214 | 1.4 |
| SÖS | 170 | 4.9 | 260 | 1.8 |
| Trollhättan | 65 | 1.9 | 328 | 2.2 |
| Umeå | 33 | 1.0 | 327 | 2.2 |
| Uppsala | 160 | 4.6 | 810 | 5.5 |
| Västerås | 85 | 2.5 | 283 | 1.9 |
| Örebro | 125 | 3.6 | 998 | 6.8 |
| Östersund | 6 | 0.2 | 47 | 0.3 |
| Östra sjukhuset | 4 | 0.1 | 14 | 0.1 |
| Stenosis class | ||||
| A | 168 | 4.9 | 928 | 6.3 |
| B1 | 882 | 25.5 | 4,550 | 30.8 |
| B2 | 1,346 | 38.9 | 6,035 | 40.9 |
| C | 1,060 | 30.6 | 3,214 | 21.8 |
| Other | 6 | 0.2 | 33 | 0.2 |
| Stenosis in culprit artery | ||||
| 50%–69% | 34 | 1.0 | 198 | 1.3 |
| 70%–89% | 118 | 3.4 | 1,081 | 7.3 |
| 90%–99% | 510 | 14.7 | 4,406 | 29.9 |
| 100% | 2,800 | 80.9 | 9,075 | 61.5 |
| Angiography finding | ||||
| Normal | 2 | 0.1 | 16 | 0.1 |
| 1 vessel | 1,957 | 56.5 | 7,260 | 49.2 |
| 2 vessels | 931 | 26.9 | 4,271 | 28.9 |
| 3 vessels | 450 | 13.0 | 2,537 | 17.2 |
| Left main | 117 | 3.4 | 659 | 4.5 |
| Missing | 5 | 0.1 | 17 | 0.1 |
| BMIa,b | 26.0 (24.0, 29.0) | 26.0 (24.0, 29.0) | ||
| Missing | 839 | 24.2 | 3,642 | 24.7 |
| Smoking status | ||||
| Never | 1,157 | 33.4 | 5,596 | 37.9 |
| Former smoker (>1 month) | 957 | 27.6 | 4,045 | 27.4 |
| Current smoker | 1,038 | 30.0 | 3,999 | 27.1 |
| Missing | 310 | 9.0 | 1,120 | 7.6 |
| Diabetes | 428 | 12.4 | 2,292 | 15.5 |
| Hyperlipidemia treatment | 724 | 20.9 | 3,327 | 22.5 |
| Hypertension treatment | 1,340 | 38.7 | 6,628 | 44.9 |
| Previous myocardial infarction | 426 | 12.3 | 1,996 | 13.5 |
| Previous percutaneous coronary intervention | 368 | 10.6 | 1,563 | 10.6 |
| Previous coronary artery bypass grafting | 64 | 1.8 | 337 | 2.3 |
| Thrombolysis | 16 | 0.5 | 54 | 0.4 |
| Warfarin | 72 | 2.1 | 303 | 2.1 |
| Aspirin | 3,341 | 96.5 | 14,347 | 97.2 |
| Clopidogrel or ticlopidine | 2,141 | 61.8 | 6,357 | 43.1 |
| Prasugrel | 118 | 3.4 | 623 | 4.2 |
| Heparin | 2,796 | 80.8 | 12,648 | 85.7 |
| Low-molecular weight heparin | 311 | 9.0 | 883 | 6.0 |
| Bivalirudin | 1,729 | 49.9 | 7,081 | 48.0 |
| Glycoprotein IIb/IIIa inhibitors | 1,457 | 42.1 | 3,906 | 26.5 |
| Heart ratea | 74.0 (61.0, 87.0) | 75.0 (63.0, 88.0) | ||
| Missing | 245 | 7.1 | 784 | 5.3 |
| Systolic blood pressurea | 138.0 (120.0, 157.0) | 141.0 (125.0, 160.0) | ||
| Missing | 257 | 7.4 | 837 | 5.7 |
| Diastolic blood pressurea | 80.0 (70.0, 95.0) | 84.0 (72.0, 96.0) | ||
| Missing | 457 | 13.2 | 1,475 | 10.0 |
Abbreviations: BMI, body mass index; SWEDEHEART, Swedish Web-Based System for Enhancement and Development of Evidence-Based Care in Heart Disease Evaluated According to Recommended Therapies.
a Values are expressed as median (interquartile range).
b Weight (kg)/height (m)2.