Table 3.
Positive predictive value of different screening approaches to identify severe maternal morbidity in twin gestations
| Screening approach | Screen positives identified (n) | Gold standard definition | Positive predictive value (%) | True positive cases missed with screening approach | |
|---|---|---|---|---|---|
| True positives | False positives | ||||
| CDC, ICU, or LOS | 165 | 56 | 109 | 34 | 0 | 
| CDC | 149 | 48 | 101 | 32 | 8 | 
| CDC minus blood transfusion | 44 | 39 | 5 | 87 | 17 | 
Abbreviations: CDC, Centers for Disease Control and Prevention; ICU, intensive care unit; LOS, length of stay.