Table 1 The value of the second to fifth metacarpal plane in detecting severe forearm and hand abnormalities.
| Â | Â | Autopsy or newborn display | ||
|---|---|---|---|---|
positive | negative | Total | ||
Abnormalities on sonography | positive | 134 | 1 | 135 |
negative | 4 | 20,000 | 20,004 | |
Total | Â | 138 | 20,001 | 20,139 |
