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Fetal factors associated with oligohydraminos.
| Factors | AFI (cm) | Total number | |
|---|---|---|---|
| <5 cm | 5–8 cm | ||
| GIT abnormalities | 0 | 1 | 1 (2.27%) |
| CNS abnormalities | 1 | 0 | 1 (2.27%) |
| CVS abnormality | 1 | 0 | 1 (2.27%) |
| Congenital infections | 0 | 0 | 0 |
AFI = amniotic fluid index, CNS = central nervous system, CVS = cardiovascular system, GIT = gastrointestinal tract.
