30- and 90-day mortality rates by region.
| 30-day Mortality | 90-day Mortality | |||||
|---|---|---|---|---|---|---|
| US/Canada (%) | Other Countries (%) | Relative Risk (95% CI) | US/Canada (%) | Other Countries (%) | Relative Risk (95% CI) | |
| Primary hip: all-comers | 893/69,819 (1.28) | 1,331/282,889 (0.47) | 2.72 (2.50–2.96) | 37/8,885 (0.42) | 707/91,173 (0.78) | 0.54 (0.39–0.75) |
| Primary knee: all-comers | 522/111,385 (0.43) | 755/261,059 (0.29) | 1.62 (1.45–1.81) | 1,733/289,094 (0.60) | 188/24,492 (0.77) | 0.78 (0.67–0.91) |