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Resource utilization
| Factor | Revision TKA | Revision THA |
|---|---|---|
| Severity of illness score n (%) | ||
| Minor | 49,704 (16.5) | 9907 (4.2) |
| Moderate | 197,436 (65.4) | 91,135 (38.6) |
| Major | 46,556 (15.4) | 124,730 (52.9) |
| Extreme | 8002 (2.7) | 10,033 (4.3) |
| Mean length of stay (days) ± SD | 4.8 ± 10.5 days | 5.8 ± 14.0 days |
| Mean hospitalization cost ± SD | USD 23,130 ± USD 36,643 | USD 24,697 ± USD 40,489 |
