Table 3.
Patient Characteristics Associated with Early Revision THA (7,945 revisions among 207,256 patients).
| Septic Revision (n=889) | Aseptic Revision (n=7,056) | |||||
|---|---|---|---|---|---|---|
|
| ||||||
| Hazard Ratio | 95% CI | p-value | Hazard Ratio | 95% CI | p-value | |
| Age | ||||||
| 50–75 v. <50 | 0.78 | (0.64,0.95) | 0.015 | 0.84 | (0.78,0.90) | <0.001 |
| >75 v. <50 | 0.51 | (0.39,0.66) | <0.001 | 0.63 | (0.58,0.69) | <0.001 |
| Female | 0.71 | (0.62,0.82) | <0.001 | 0.98 | (0.93,1.03) | 0.414 |
| Race | ||||||
| Black v. White | 1.08 | (0.83,1.40) | 0.570 | 1.08 | (0.98,1.20) | 0.140 |
| Other v. White | 0.85 | (0.63,1.15) | 0.300 | 0.79 | (0.70,0.89) | <0.001 |
| Unknown v. White | 0.59 | (0.39,0.89) | 0.012 | 0.82 | (0.71,0.93) | 0.003 |
| Insurance | ||||||
| Medicare v. Private | 1.24 | (1.05,1.47) | 0.011 | 1.07 | (1.01,1.13) | 0.022 |
| Medicaid v. Private | 1.91 | (1.45,2.51) | <0.001 | 1.12 | (0.10,1.27) | 0.068 |
| Self-Pay v. Private | 2.19 | (1.15,4.12) | 0.015 | 0.88 | (0.62,1.25) | 0.494 |
| Other v. Private | 1.54 | (1.10,2.16) | 0.012 | 1.14 | (1.00,1.31) | 0.049 |
| Surgical indication | ||||||
| IA v. OA | 1.59 | (1.20,2.08) | 0.001 | 1.23 | (1.11,1.37) | 0.001 |
| AVN v. OA | 1.26 | (1.01,1.57) | 0.045 | 1.21 | (1.11,1.31) | <0.001 |
| Congenital v. OA | 0.64 | (0.35,1.17) | 0.150 | 1.17 | (1.01,1.36) | 0.041 |
| Acute Fracture v. OA | 1.85 | (1.48,2.31) | <0.001 | 1.15 | (1.05,1.27) | 0.003 |
| Neoplasm v. OA | 1.79 | (1.01,3.17) | 0.046 | 1.13 | (0.88,1.45) | 0.359 |
| Other v. OA | 2.93 | (1.72,5.00) | <0.001 | 1.88 | (1.49,2.38) | <0.001 |
| Elixhauser Comorbidities | ||||||
| Congestive heart failure | 0.98 | (0.67,1.44) | 0.919 | 0.89 | (0.76,1.04) | 0.140 |
| Valvular disease | 0.84 | (0.57,1.22) | 0.355 | 0.93 | (0.81,1.06) | 0.270 |
| Peripheral vascular disease | 0.97 | (0.58,1.62) | 0.893 | 0.84 | (0.68,1.03) | 0.097 |
| Other neurological disorders | 0.96 | (0.63,1.46) | 0.836 | 1.01 | (0.86,1.19) | 0.870 |
| Chronic pulmonary disease | 1.30 | (1.07,1.56) | 0.007 | 1.08 | (1.00,1.16) | 0.052 |
| Diabetes | 1.44 | (1.18,1.76) | 0.001 | 0.92 | (0.84,1.01) | 0.066 |
| Hypothyroidism | 1.33 | (1.06,1.66) | 0.013 | 1.09 | (1.01,1.19) | 0.032 |
| Coagulopathy | 1.56 | (0.96,2.53) | 0.072 | 0.94 | (0.74,1.19) | 0.606 |
| Obesity | 1.68 | (1.34,2.10) | <0.001 | 0.91 | (0.82,1.01) | 0.073 |
| Fluid and electrolyte disorders | 1.34 | (1.04,1.72) | 0.025 | 0.97 | (0.87,1.08) | 0.536 |
| Depression | 1.50 | (1.14,1.98) | 0.004 | 1.41 | (1.27,1.57) | <0.001 |
| Hypertension | 1.09 | (0.94,1.25) | 0.255 | 1.01 | (0.96,1.06) | 0.786 |