The ability to accurately and easily measure outcomes is fundamental to improving patient safety and mitigating risk. The Adverse Outcome Index (AOI) allows for standardized measurement of the adverse events occurring during labor and delivery
The ROI of AOI
- Measures the volume and magnitude of adverse events
- Identifies potential liability and malpractice claims
- Monitors the impact of patient safety activities
- Informs about the ability to respond to events and reduce harm
Since the individual rates of the ten adverse events can be very low, it would require many observations or an extended period of measurement to get a reasonable snapshot of obstetric quality.
Grouping the ten measures together and weighting each measure for its associated severity provides a more complete picture of the quality of care.
- In-Hospital Maternal Death
- In-Hospital Neonatal Death ≥ 2500 Grams and ≥ 37 Weeks Gestation
- Uterine Rupture During Labor
- Maternal Intensive Care
- Birth Trauma
- Unanticipated Operative Procedure
- Admission to NICU of Neonate Birthweight ≥ 2500 grams and ≥ 37 weeks GA for > 1 day
- APGAR 5 < 7
- Maternal Blood Transfusion
- 4th Degree Perineal Laceration
Calculated from the count and weight of events
The Adverse Outcome Index (AOI)
The number of patients with one or more identified adverse events, divided by the total number of deliveries.
The Weighted Adverse Outcome Score (WAOS)
The total weights of all the adverse events, divided by the total number of deliveries.
The Severity Index (SI)
The total weights of all the adverse events, divided by the number of patients with an adverse event.