Table 2.
Comparison of Patient Characteristics by Periprosthetic Fracture Location (Hip vs Knee).a
| Characteristics | Knee (n = 2025) | Hip (n = 2635) | P value |
|---|---|---|---|
| Age, years | 74.8 ± 0.55 | 74.3 ± 0.54 | .452 |
| 18-64, n (%) | 350 (17.3%) | 575 (21.9%) | .014b |
| 65-74, n (%) | 560 (27.7%) | 535 (20.3%) | |
| 75+, n (%) | 1115 (55.1%) | 1520 (57.8%) | |
| Female gender, n (%) | 1695 (83.7%) | 1735 (66.0%) | <.0001c |
| Race | |||
| White, n (%) | 1680 (85.3%) | 2160 (85.7%) | .126 |
| Black, n (%) | 145 (7.4%) | 120 (4.8%) | |
| Other, n (%) | 145 (7.4%) | 240 (9.5%) | |
| Dead, n (%) | 50 (2.5%) | 35 (1.3%) | .206 |
| Comorbidity level | |||
| Low (0-2), n (%) | 635 (31.4%) | 1060 (40.2%) | .008d |
| Medium (3-4), n (%) | 815 (40.2%) | 850 (32.3%) | |
| High (5+), n (%) | 575 (28.4%) | 725 (27.5%) | |
| LOS (days) | 7.30 ± 0.30 | 7.74 ± 0.32 | .320 |
| Total cost | 27 944.00 ± 1146.49 | 30 979.00 ± 843.28 | <.0001c |
| Procedure | |||
| Internal fixation, n (%) | 1635 (80.7%) | 1030 (39.1%) | <.0001c |
| Revision arthroplasty, n (%) | 390 (19.3%) | 1605 (60.9%) | |
| Blood product, n (%) | 845 (41.7%) | 1320 (50.1%) | .010d |
| Transfer, n (%) | 235 (11.8%) | 335 (12.8%) | .613 |
| Hospital classification | |||
| Rural, n (%) | 110 (5.4%) | 165 (6.3%) | .122 |
| Urban NT, n (%) | 445 (22.0%) | 705 (26.8%) | |
| Urban T, n (%) | 1470 (72.6%) | 1765 (67.0%) | |
Abbreviations: LOS, hospital length of stay; Transfer, transferred in from acute care hospital; blood product, blood products were ordered; Urban NT, urban non-teaching; Urban T, Urban Teaching.
a SE reported with age, LOS, and total cost means.
b P ≤ .05.
c P ≤ .001.
d P ≤ .01.