Table 1.
Characteristics of Medicare Patients who Underwent Index Femoropopliteal Intervention for Claudication and Subsequent Reintervention vs. No Reintervention Overall and Stratified by Receipt of Index Atherectomy
| Patient Characteristics | All Patients (N=15,246) | Index Atherectomy PVI (N=9,100) | Index Non-Atherectomy PVI (N=6,146) | |||
|---|---|---|---|---|---|---|
| Reintervention (N=6,279) | No Reintervention (N=8,967) | Reintervention (N=4,448) | No Reintervention (N=4,652) | Reintervention (N=1,831) | No Reintervention (N=4,315) | |
| Age (years) | ||||||
| median, IQR | 74.1 (69.0, 79.6) | 74.3 (69.6, 79.9) | 74.3 (69.2, 79.8) | 74.3 (69.7, 80.0) | 73.6 (68.6, 78.6) | 74.2 (69.5, 79.9) |
| ≤64 | 610 (9.71) | 777 (8.67) | 427 (9.60) | 385 (8.28) | 183 (9.99) | 392 (9.08) |
| 65–74 | 2,817 (44.86) | 4,039 (45.04) | 1,948 (43.79) | 2,098 (45.10) | 869 (47.46) | 1,941 (44.98) |
| 75–84 | 2,292 (36.50) | 3,235 (36.08) | 1,656 (37.23) | 1,686 (36.24) | 636 (34.74) | 1,549 (35.90) |
| ≥85 | 560 (8.92) | 916 (10.22) | 417 (9.38) | 483 (10.38) | 143 (7.81) | 433 (10.03) |
| Sex | ||||||
| Female | 2,521 (40.15) | 3,631 (40.49) | 1,793 (40.31) | 1,849 (39.75) | 728 (39.76) | 1,782 (41.30) |
| Male | 3,758 (59.85) | 5,336 (59.51) | 2,655 (59.69) | 2,803 (60.25) | 1,103 (60.24) | 2,533 (58.70) |
| Race | ||||||
| White | 4,886 (77.81) | 7,455 (83.14) | 3,351 (75.34) | 3,757 (80.76) | 1,535 (83.83) | 3,698 (85.70) |
| Black | 922 (14.68) | 1,011 (11.27) | 728 (16.37) | 618 (13.28) | 194 (10.60) | 393 (9.11) |
| Asian | 65 (1.04) | 86 (0.96) | 47 (1.06) | 50 (1.07) | 18 (0.98) | 36 (0.83) |
| Hispanic | 207 (3.30) | 184 (2.05) | 182 (4.09) | 111 (2.39) | 25 (1.37) | 73 (1.69) |
| Other | 199 (3.17) | 231 (2.58) | 140 (3.15) | 116 (2.39) | 59 (3.22) | 115 (2.67) |
| Comorbidities | ||||||
| ESRD | 1,627 (25.91) | 2,251 (25.10) | 1,199 (26.96) | 1,114 (23.95) | 428 (23.38) | 1,137 (26.35) |
| Diabetes | 3,161 (50.34) | 3,999 (44.60) | 2,283 (51.33) | 2,119 (45.55) | 878 (47.95) | 1,880 (43.57) |
| Hypertension | 5,624 (89.57) | 8,001 (89.23) | 3,970 (89.25) | 4,141 (89.02) | 1,654 (90.33) | 3,860 (89.46) |
| Smoking | 1,961 (31.23) | 2,944 (32.83) | 1,350 (30.35) | 1,501 (32.27) | 611 (33.37) | 1,443 (33.44) |
| Population density of residence | ||||||
| Urban | 5,008 (79.76) | 6,957 (77.58) | 3,592 (80.76) | 3,618 (77.77) | 1,416 (77.33) | 3,339 (77.38) |
| Rural | 1,271 (20.23) | 2,010 (22.42) | 856 (19.24) | 1,034 (22.23) | 415 (22.67) | 976 (22.62) |
| Census region of residence | ||||||
| Midwest | 1,196 (19.05) | 1,934 (21.57) | 756 (17.00) | 882 (18.96) | 440 (24.03) | 1,052 (24.38) |
| Northeast | 716 (11.40) | 1,269 (14.15) | 428 (9.62) | 500 (10.75) | 288 (15.73) | 769 (17.82) |
| South | 3,196 (50.90) | 4,373 (48.77) | 2,379 (53.48) | 2,536 (54.51) | 817 (44.62) | 1,837 (42.57) |
| West | 1,163 (18.52) | 1,382 (15.41) | 879 (19.76) | 727 (15.63) | 284 (15.51) | 655 (15.18) |
| Other | 8 (0.13) | 9 (0.10) | 6 (0.13) | 7 (0.15) | 2 (0.11) | 2 (0.05) |
PVI, peripheral vascular intervention; ESRD, end-stage renal disease