Table IV.
Odds Ratios for Readmission to a Different Hospital
| Factor | Odds Ratios (95% CI) | P-value |
|---|---|---|
| Age (per year) | 1.03 (1.01-1.06) | .018 |
| Non-white (vs. white) | 1.15 (0.55-2.38) | .715 |
| Male (vs. female) | 1.05 (0.73-1.50) | .800 |
| Charlson Comorbidity Index (per unit difference from mean) | 0.97 (0.89-1.05) | .447 |
| Mobility | ||
| None | Referent | n/a |
| Cane/walker | 1.06 (0.73-1.53) | .756 |
| Wheelchair/scooter | 1.49 (0.94-2.37) | .09 |
| Distance from residence to index hospital (miles) | ||
| Less than or equal to 10 | Referent | n/a |
| > 10 - 20 | 1.69 (0.99-2.81) | .054 |
| > 20 - 30 | 4.55 (2.56-8.10) | < .001 |
| > 30 - 40 | 6.70 (3.53-12.72) | < .001 |
| > 40 - 50 | 6.03 (3.02-12.06) | < .001 |
| > 50 - 100 | 8.50 (5.17-13.97) | < .001 |
| Greater than 100 | 5.60 (3.13-9.99) | < .001 |
| Non-rupture vs. Ruptured aneurysm | 1.38 (0.74-2.57) | .318 |
| Open repair vs. EVAR | 1.20 (0.83-1.76) | .335 |
| Initial LOS (per day) | 1.02 (1.00-1.05) | .09 |
| Number of Post-Operative Complications (per unit change from mean) | 0.96 (0.81-1.14) | .622 |
| Discharge Destination | ||
| Home | Referent | n/a |
| Home with services | 1.31 (0.85-2.03) | .224 |
| Skilled Nursing Facility | 0.97 (0.58-1.60) | .895 |
| Other | 1.00 (0.52-1.94) | .988 |
| Index Hospital Medical School Affiliation | ||
| Other | Referent | n/a |
| Major | 1.14 (0.81-1.58) | .169 |
| Emergent vs. non-Emergent readmission | 1.53 (1.08-2.18) | .018 |
n/a, not applicable.
Odds ratios are adjusted for the variables displayed in the table: age, gender, race, Charlson comorbidity index, use of mobility assistive device, distance from patient residence to index hospital, type of aneurysm (ruptured vs. non-ruptured), AAA repair type, initial length of stay, number of postoperative complications, initial discharge destination, index hospital medical school affiliation, and type of readmission.