Table 2.
Reviewer performance for the identification of placental abruption on CT scans of trauma patients
| Negative for abruption | Positive for abruption | DR vs. AJC | DR vs. MH | AJC vs. MH | |||
|---|---|---|---|---|---|---|---|
| TN | FP | TP | FN | ||||
| Original dictated reports (DR) | |||||||
| 1st trimester | 6 | 0 | 0 | 0 | |||
| 2nd trimester | 15 | 2 | 1 | 3 | |||
| 3rd trimester | 14 | 2 | 2 | 1 | |||
| All GA | 35 | 4 | 3 | 4 | |||
| Percent all GA | 76.1 | 8.7 | 6.5 | 8.7 | |||
| Untrained reviewer (AJC) | |||||||
| 1st trimester | 6 | 0 | 1 | 0 | |||
| 2nd trimester | 11 | 6 | 3 | 0 | |||
| 3rd trimester | 14 | 2 | 3 | 0 | |||
| All GA | 31 | 8 | 7 | 0 | |||
| Percent all GA | 67.4 | 17.4 | 15.2 | 0.0 | |||
| Trained reviewer (MH) | |||||||
| 1st trimester | 6 | 0 | 1 | 0 | |||
| 2nd trimester | 13 | 4 | 3 | 0 | |||
| 3rd trimester | 13 | 3 | 3 | 0 | |||
| All GA | 32 | 7 | 7 | 0 | |||
| Percent all GA | 69.6 | 15.2 | 15.2 | 0.0 | |||
| Inter-reviewer agreement | |||||||
| Percent agreement | 78.3 | 71.7 | 89.1 | ||||
| Percent disagreement | 21.7 | 28.3 | 10.9 | ||||
TN true negative, FP false positive, TP true positive, FN false negative