Table II.
Univariate Analysis of Clinical Characteristics for Medicare Beneficiaries Readmitted within 30 Days of AAA Repair, by Readmission Location
| Characteristic | Primary Hospital, (n= 626) | Different Hospital, (n= 259) | P-value |
|---|---|---|---|
| Repair Type, n (%) | .37 | ||
| Open Repair | 262 (41.8) | 100 (38.6) | |
| EVAR | 364 (58.2) | 159 (61.4) | |
| Ruptured Aneurysm, n (%) | 55 (8.8) | 17 (6.6) | .27 |
| Had in-hospital complication during initial hospitalization, n (%) | |||
| Any complication | 322 (51.4) | 146 (56.4) | .18 |
| Respiratory | 197 (31.5) | 96 (37.1) | .11 |
| Hemorrhage/Shock | 112 (17.9) | 37 (14.3) | .19 |
| Vascular/Device | 52 (8.3) | 26 (10.0) | .41 |
| Cardiac | 59 (9.4) | 33 (12.7) | .14 |
| Wound/SSI | 26 (4.2) | --a | .64 |
| Renal/Urologic | 111 (17.7) | 54 (20.9) | .28 |
| Neurologic | 54 (8.6) | 11 (4.3) | .02 |
| Reoperation | --a | --a | .24 |
| Venous thromboembolism | 18 (2.9) | --a | .06 |
| Number of in-hospital complications, mean (SD) | 1.0 (1.3) | 1.1 (1.2) | .67 |
| Initial length of stay, mean (SD) | 7.9 (9.2) | 9.3 (11.2) | .01 |
| Initial discharge destination, n (%) | .73 | ||
| Home | 351 (56.1) | 144 (55.6) | |
| Home with home care | 107 (17.1) | 49 (18.9) | |
| Skilled nursing facility | 118 (18.8) | 41 (15.8) | |
| Other | 50 (8.0) | 25 (9.6) | |
| Index hospital medical school affiliation, n (%) | .002 | ||
| Major | 205 (32.9) | 104 (40.1) | |
| Emergency Visit Prior to Readmission, n (%) | 398 (63.4) | 185 (71.4) | .03 |
| Time to Readmission, mean (SD) | 11.2 (8.3) | 12.1 (8.2) | .15 |
| Rehospitalization length of stay, mean (SD) | 6.6 (8.3) | 5.8 (5.2) | .07 |
SD indicates standard deviation; %, column percentage.
EVAR, endovascular aneurysm repair; SSI, surgical site infection.
a
Exact cell size suppressed to protect patient confidentiality; n < 11.