Table 1.
Patient characteristics and outcomes within the study cohort (N=458,526)
| Variable | N (%) | |
|---|---|---|
| Patient Characteristics | ||
| Sex | Female | 333945 (72.8%) |
| Male | 124581 (27.2%) | |
| Race | White | 429020 (93.6%) |
| Black | 16235 (3.5%) | |
| Other | 13271 (2.9%) | |
| Age category | ≤ 75 | 80316 (17.5%) |
| 76-80 | 81084 (17.7%) | |
| 81-85 | 117064 (25.5%) | |
| 86-90 | 109265 (23.8%) | |
| ≥91 | 70797 (15.4%) | |
| Co-morbidities | Alzheimer's disease | 120693 (26.3%) |
| Angina | 5459 (1.2%) | |
| Cancer | 58372 (12.7%) | |
| Congestive heart failure | 86692 (18.9%) | |
| Chronic lung disease | 85088 (18.6%) | |
| Diabetes | 93268 (20.3%) | |
| Hypertension | 298394 (65.1%) | |
| Liver Disease | 5228 (1.1%) | |
| Electrolyte Disturbance | 109710 (23.9%) | |
| Paraplegia | 13693 (3.0%) | |
| Pathological fracture | 634 (0.1%) | |
| Arrhythmias | 118255 (25.8%) | |
| Pulmonary fibrosis | 6073 (1.3%) | |
| Renal failure | 50430 (11.0%) | |
| Unstable angina | 2287 (0.5%) | |
| Valvular abnormalities | 44428 (9.7%) | |
| Weight loss | 23895 (5.2%) | |
| Fracture location | Femoral neck | 224374 (48.9%) |
| Intertrochanteric | 191072 (41.7%) | |
| Subtrochanteric | 18957 (4.1%) | |
| Multiple locations | 24123 (5.3%) | |
| Surgery type | Internal fixation | 279230 (60.9%) |
| Arthroplasty | 15121 (3.3%) | |
| Hemiarthroplasty | 164175 (35.8%) | |
| Admitted from a nursing home | 32086 (7.0%) | |
| Outcomes | ||
| Received surgery > 48h after admission | 135,869 (29.6%) | |
| Died within 30 days from discharge | 38147 (8.3%) | |
| Readmitted within 30 days from discharge | 70965 (15.5%) | |
| Readmitted or died within 30 days from discharge | 98878 (21.6%) | |