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Standardized mortality ratio of APACHE II, OEWS, and SOFA scores
| Score | Observer maternal mortality (%) | Predicted maternal mortality (%) | Standardized mortality ratio (%) |
|---|---|---|---|
| APACHE II score | 26.00 | 37.60 | 69.15 |
| OEWS score | 26.00 | 39.20 | 66.33 |
| SOFA score | 26.00 | 41.60 | 62.50 |
