Table 2.
Comparing the outcomes and complications of patients undergoing primary total hip arthroplasty between octogenarians and nonagenarians. Healthcare Cost and Utilization Project—Nationwide Inpatient Sample, 2010–2014.
| Octogenarians (n = 147,281) | Nonagenarians (n = 8388) | p-Value | |
|---|---|---|---|
| Length of Stay (days), mean (SD) | 3.45 (1.89) | 3.83 (2.41) | <0.001 * |
| Total Charges (USD), mean (SD) | 55,558 (31,717) | 57,704 (31,213) | 0.007 * |
| % Hospital Mortality | 0.18 | 0.19 | 0.977 |
| % Receiving Transfusion | 24.0 | 33.13 | <0.001 |
| % DVT | 0.11 | 0.12 | 0.895 |
| % PE | 0.24 | 0.22 | 0.861 |
| % Postop Infection | 0.04 | 0.0 | 0.390 |
| % Acute MI | 0.61 | 0.94 | 0.067 |
| % Dehiscence | 0.02 | 0.0 | 0.528 |
| % Pneumonia or Pneumonitis | 0.44 | 0.70 | 0.116 |
| % UTI | 3.92 | 5.14 | 0.012 |
| % CVA | 0.10 | 0.18 | 0.371 |
| % AKI | 3.57 | 5.50 | <0.001 |
| % Cardiogenic Shock | 0.02 | 0.06 | 0.202 |
| % Other Shock | 0.16 | 0.35 | 0.059 |
| % Sepsis | 0.24 | 0.18 | 0.641 |
* t-test performed on log-transformed data to meet the assumption of normality.