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Maternal factors associated with polyhydramnios.
| Factors | AFI (cm) | Total number | ||
|---|---|---|---|---|
| 25–30 cm | 30–35 cm | >35 cm | ||
| Diabetes mellitus | 4 | 0 | 0 | 4 (25%) |
| PIH | 2 | 0 | 0 | 2 (12.5) |
| Rh isoimmunization | 0 | 0 | 0 | 0 |
| Rh incompatibility | 0 | 0 | 0 | 0 |
| Cardiac abnormality | 0 | 0 | 0 | 0 |
AFI = amniotic fluid index, PIH = pregnancy-induced hypertension.
