Table 3.
Value analysis of the combined diagnosis of placenta accreta by the two methods.
| Joint diagnosis | Gold standard | Coincidence rate (%) | Kappa value | |
|---|---|---|---|---|
| Positive | Negative | |||
| Positive | 44 | 4 | 80.90 | 0.609 |
| Negative | 13 | 28 | ||
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