Table 1:
Demographic, geographic and clinical characteristics of Texans who underwent revascularization or leg amputation for a diagnosis of PAD and foot pathology, 2004–2009. Numbers in parenthesis represent the proportion of the column total.
| Variable | All patients (n=21,273) | Revascularization (n=16,898) | Primary leg amputation (n=4,375) | p-value |
|---|---|---|---|---|
| Diabetes | 9,396 (44.2) | 7,012 (41.5) | 2,384 (54.5) | <0.001 |
| Heel ulcer | 254 (7.2) | 164 (5.7) | 90 (13.7) | <0.001 |
| Foot infection | 4,426 (20.8) | 2,467 (14.6) | 1,959 (44.8) | <0.001 |
| Foot osteomyelitis | 1,453 (6.8) | 930 (5.5) | 523 (12.0) | <0.001 |
| Gender | 0.137 | |||
| Male | 12,286 (57.8) | 9,733 (57.6) | 2,553 (58.4) | |
| Female | 8,339 (39.2) | 6,666 (39.5) | 1,673 (38.2) | |
| Missing/Deidentified | 648 (3.1) | 499 (3.0) | 149 (3.4) | |
| Age | ||||
| 18–44 years | 408 (1.9) | 320 (1.9) | 88 (2.0) | 0.61 |
| 45–64 years | 6,781 (31.9) | 5,672 (33.6) | 1,109 (25.4) | <0.001 |
| 65–74 years | 6,406 (30.1) | 5,310 (31.4) | 1,096 (25.1) | <0.001 |
| 75+ years | 7,678 (36.1) | 5,596 (33.1) | 2,082 (47.6) | <0.001 |
| Race & ethnicity | ||||
| non-Hispanic white | 11,340 (53.3) | 9,456 (56.2) | 1,844 (42.2) | <0.001 |
| non-Hispanic black | 3,423 (16.1) | 2,457 (14.5) | 966 (22.1) | <0.001 |
| Hispanic white | 1,423 (6.7) | 986 (5.8) | 437 (10.0) | <0.001 |
| Hispanic black | 16 (0.1) | 13 (0.1) | 3 (0.1) | 0.86 |
| Hispanic other race | 3,926 (18.5) | 3,037 (18.0) | 889 (20.3) | <0.001 |
| Asian | 143 (0.7) | 109 (0.7) | 34 (0.8) | 0.34 |
| Native American | 216 (1.0) | 197 (1.2) | 19 (0.4) | <0.001 |
| All other races, non-Hispanic | 786 (3.7) | 603 (3.6) | 183 (4.2) | 0.06 |
| Region | ||||
| Panhandle | 745 (3.5) | 616 (3.7) | 129 (3.0) | 0.03 |
| South Plains | 610 (2.9) | 448 (2.7) | 162 (3.7) | <0.001 |
| Dallas/Fort Worth/Arlington | 4,412 (20.8) | 3,688 (21.9) | 724 (16.6) | <0.001 |
| Texarkana | 1,409 (6.7) | 1,042 (6.2) | 367 (8.4) | <0.001 |
| East Texas | 1,137 (5.4) | 900 (5.4) | 237 (5.4) | 0.81 |
| Houston-Galveston | 4,629 (21.9) | 3,789 (22.5) | 840 (19.2) | <0.001 |
| Central Texas | 1,896 (9.0) | 1,365 (8.1) | 531 (12.2) | <0.001 |
| Southwest | 2,427 (11.5) | 1,937 (11.5) | 490 (11.2) | 0.63 |
| West Central | 623 (2.9) | 469 (2.8) | 154 (3.5) | 0.009 |
| West Texas | 501 (2.4) | 397 (2.4) | 104 (2.4) | 0.92 |
| Rio Grande Valley | 2,805 (13.2) | 2,179 (13.0) | 626 (14.3) | 0.01 |
| Payer, primary or secondary | ||||
| Medicare | 14,403 (67.7) | 11,145 (66.0) | 3,258 (74.5) | <0.001 |
| Medicaid | 4,636 (21.8) | 3,164 (18.7) | 1,472 (33.7) | <0.001 |
| Commercial (private) insurance | 4,581 (21.5) | 3,853 (22.8) | 728 (16.6) | <0.001 |
| HMO/PPO | 3,182 (15.0) | 2,750 (16.3) | 432 (9.9) | <0.001 |
| Liability or indemnity | 1,243 (5.8) | 1,083 (6.4) | 160 (3.7) | <0.001 |
| Other insurance | 1,188 (5.6) | 1,018 (6.0) | 170 (3.9) | <0.001 |
| Charity or uninsured | 1,406 (6.6) | 1,047 (6.2) | 359 (8.2) | <0.001 |
| Admission source | ||||
| E.R. or other urgent admission | 8,591 (40.4) | 6,240 (36.9) | 2,351 (53.7) | <0.001 |
| Skilled nursing facility | 273 (1.3) | 202 (1.2) | 71 (1.6) | 0.03 |
| Other non-urgent admission | 12,497 (58.8) | 10,513 (62.2) | 1,984 (45.4) | <0.001 |
| Teaching hospital designation | 2,688 (12.6) | 2,127 (12.6) | 561 (12.8) | 0.68 |