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Comparison of neural tube closure, developmental retardation, and early embryonic death among study groups.
| Embryo evaluatio | n | 1 mg | 2 mg | 4 mg | Control | p |
|---|---|---|---|---|---|---|
| No development | 14 | 3 | 5 | 5 | 1 | 0.043 |
| Developmental retardation | 4 | 2 | 0 | 2 | 0 | 0.012 |
| Neural tube open | 1 | 1 | 0 | 0 | 0 | 0.458 |
| Neural tube closed | 63 | 14 | 15 | 15 | 19 | 0.103 |
