SMM rate measurement | Pre-intervention (n=4912) | Post-intervention (n=8747) | Rate reduction | P value |
Total SMM rate | 4.76% | 4.13% | 13.4% | 0.08 |
SMM rate excluding transfusion codes | 1.71% | 1.75% | −2.3% | 0.87 |
Transfusion code SMM rate | 3.97% | 3.22% | 18.8% | 0.02 |
SMM rate from haemorrhage | 34.10% | 26.67% | 21.8% | <0.01 |
SMM rate from haemorrhage excluding transfusion codes | 9.51% | 9.06% | 4.7% | 0.39 |
Rate of transfusion code from haemorrhage | 31.80% | 23.54% | 26.0% | <0.01 |
Transfusion of ≥4 units PRBCs rate | 0.66% | 0.65% | 1.7% | 0.99 |
Created by the authors.
PRBCs, packed red blood cells; SMM, severe maternal morbidity.