Table 1. Baseline characteristics of patients who underwent femoropopliteal endovascular revascularisation stratified by receiving atherectomy.
| Total population (168,553) | No atherectomy (N=109,411) | Atherectomy (N=59,142) | SMD | ||
|---|---|---|---|---|---|
| Demographics | |||||
| Age | 77.02±7.59 | 77.18±7.76 | 76.73±7.45 | 0.06 | |
| Female | 75,744 (44.9) | 49,485 (45.2) | 26,259 (44) | 0.02 | |
| Race | White | 138,026 (81.9) | 90,261 (82.5) | 47,766 (80.8) | 0.04 |
| Black | 21,765 (12.9) | 13,533 (12.4) | 8,232 (13.9) | 0.05 | |
| Asian | 1,500 (0.9) | 986 (0.9) | 514 (0.9) | 0.00 | |
| Hispanic | 4,086 (2.4) | 2,561 (2.3) | 1,525 (2.6) | 0.02 | |
| Native | 1,115 (0.7) | 684 (0.6) | 431 (0.7) | 0.01 | |
| Other | 2,061 (1.2) | 1,387 (1.3) | 673 (1.1) | 0.01 | |
| Comorbidities | |||||
| Alzheimer’s dementia | 28,904 (17.1) | 19,125 (17.5) | 9,779 (16.5) | 0.03 | |
| Alzheimer’s disease | 7,636 (4.5) | 4,961 (4.5) | 2,675 (4.5) | 0.00 | |
| Anaemia | 77,592 (46.0) | 50,678 (46.3) | 26,914 (45.5) | 0.02 | |
| Asthma | 9,989 (5.9) | 6,586 (6.0) | 3,403 (5.8) | 0.01 | |
| Atrial fibrillation | 31,051 (18.4) | 20,407 (18.7) | 10,644 (17.0) | 0.02 | |
| Breast cancer | 4,264 (2.5) | 2,847 (2.6) | 1,417 (2.4) | 0.01 | |
| Cataract | 23,563 (14.0) | 15,011 (13.7) | 8,552 (14.5) | 0.02 | |
| CHF | 63,796 (37.8) | 41,614 (38.0) | 22,182 (37.5) | 0.01 | |
| CKD | 84,519 (50.1) | 55,008 (50.3) | 29,511 (49.9) | 0.01 | |
| CLTI | 78,665 (46.7) | 52,042 (47.6) | 26,623 (45.0) | 0.05 | |
| Colorectal cancer | 3,294 (2.0) | 2,198 (2.0) | 1,096 (1.9) | 0.01 | |
| COPD | 49,949 (29.6) | 32,296 (29.5) | 17,653 (29.8) | 0.01 | |
| Current or prior tobacco use | 82,554 (49.0) | 54,267 (49.6) | 28,287 (47.8) | 0.04 | |
| Depression | 36,501 (21.7) | 24,011 (21.9) | 12,490 (21.1) | 0.02 | |
| Diabetes | 85,880 (51.0) | 54,960 (50.2) | 30,920 (52.3) | 0.04 | |
| Endometrial cancer | 638 (0.4) | 425 (0.4) | 213 (0.4) | 0.00 | |
| Glaucoma | 13,103 (7.8) | 8,293 (7.6) | 4,810 (8.1) | 0.02 | |
| Hip fracture | 2,390 (1.4) | 1,600 (1.5) | 790 (1.3) | 0.01 | |
| Hyperlipidaemia | 118,567 (70.3) | 75,562 (69.1) | 43,005 (72.7) | 0.08 | |
| Hyperparathyroidism | 21,676 (12.9) | 14,112 (12.9) | 7,564 (12.8) | 0.00 | |
| Hyperthyroidism | 135,272 (80.3) | 86,759 (79.3) | 48,513 (82.0) | 0.07 | |
| Hypothyroidism | 29,418 (17.5) | 19,045 (17.4) | 10,373 (17.5) | 0.00 | |
| Ischaemic heart disease | 110,100 (65.3) | 70,357 (64.3) | 39,743 (67.2) | 0.06 | |
| Lung cancer | 3,630 (2.2) | 2,348 (2.1) | 1,282 (2.2) | 0.00 | |
| MI | 7,748 (4.6) | 5,168 (4.7) | 2,580 (4.3) | 0.02 | |
| Osteoporosis | 12,524 (7.4) | 8,301 (7.6) | 4,223 (7.1) | 0.02 | |
| Prior amputation | 13,296 (7.9) | 9,232 (8.4) | 4,064 (6.9) | 0.06 | |
| Prostate cancer | 7,625 (4.5) | 4,868 (4.4) | 2,757 (4.7) | 0.01 | |
| Rheumatoid/osteoarthritis | 66,730 (39.6) | 42,951 (39.3) | 23,779 (40.2) | 0.02 | |
| Stroke/TIA | 15,715 (9.3) | 10,175 (9.3) | 5,540 (9.4) | 0.00 | |
| Geography | |||||
| Northeast | 7,234 (4.3) | 5,535 (5.1) | 1,700 (2.9) | 0.11 | |
| Mid-Atlantic | 21,927 (13.0) | 15,180 (13.9) | 6,749 (11.4) | 0.07 | |
| Central Northeast | 29,325 (17.4) | 18,890 (17.3) | 10,434 (17.6) | 0.01 | |
| Central Southeast | 13,429 (8.0) | 8,032 (7.3) | 5,396 (9.1) | 0.06 | |
| Central Northwest | 12,979 (7.7) | 8,898 (8.1) | 4,082 (6.9) | 0.05 | |
| Central Southwest | 23,140 (13.7) | 13,134 (12.0) | 10,003 (16.9) | 0.14 | |
| South Atlantic | 35,243 (20.9) | 22,716 (20.8) | 12,527 (21.2) | 0.01 | |
| Mountain | 8,483 (5.0) | 5,136 (4.7) | 3,346 (5.7) | 0.04 | |
| Pacific | 16,034 (9.5) | 11,306 (10.3) | 4,730 (8.0) | 0.08 | |
| Other regions | 758 (0.4) | 584 (0.5) | 175 (0.3) | 0.04 | |
| Hospital characteristics | |||||
| 6-24 beds | 147 (0.1) | 93 (0.1) | 55 (0.1) | 0.00 | |
| 25-49 beds | 1,414 (0.8) | 788 (0.7) | 625 (1.1) | 0.04 | |
| 50-99 beds | 7,110 (20.1) | 4,249 (3.9) | 2,860 (4.8) | 0.05 | |
| 100-199 beds | 27,153 (16.1) | 16,467 (15.1) | 10,684 (18.1) | 0.08 | |
| 200-299 beds | 34,342 (20.4) | 22,157 (20.3) | 12,185 (20.6) | 0.01 | |
| 300-399 beds | 31,470 (18.7) | 19,832 (18.1) | 11,638 (19.7) | 0.04 | |
| 400-499 beds | 19,263 (11.4) | 12,775 (11.7) | 6,488 (11.0) | 0.02 | |
| ≥500 beds | 47,655 (28.3) | 33,051 (30.2) | 14,607 (24.7) | 0.12 | |
| Teaching hospital | 122,061 (72.4) | 81,895 (74.9) | 40,170 (67.9) | 0.15 | |
| Procedural characteristics | |||||
| Inpatient procedure | 80,228 (47.6) | 55,640 (50.9) | 24,588 (41.6) | 0.19 | |
| Stent implantation | 69,122 (41.0) | 50,268 (45.9) | 18,854 (31.9) | 0.29 | |
| Bare metal stent | 39,779 (23.6) | 30,197 (27.6) | 9,522 (16.1) | 0.28 | |
| Drug-eluting stent | 29,396 (17.4) | 20,081 (18.4) | 9,315 (15.8) | 0.07 | |
| Drug-coated balloon | 70,584 (41.9) | 40,609 (37.1) | 29,975 (50.7) | 0.28 | |
| Age is expressed as mean±standard deviation. All other values are n (%). *SMD>0.1 is considered significant. CHF: congestive heart failure; CKD: chronic kidney disease; CLTI: chronic limb-threatening ischaemia; COPD: chronic obstructive pulmonary disease; MI: myocardial infarction; SMD: standardised mean difference; TIA: transient ischaemic attack | |||||