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Summary of studies reporting characteristics of echogenic amniotic fluid close to term determined by amniocentesis
| Study | Gestational age, weeks | Amniocentesis,N | Appearance of amniotic fluid, % (n/N) |
|---|---|---|---|
| Parulekar et al [2] | 35 – 40 | 9 | Vernix [100% (9/9)] |
| Brown et al [5] | 32 – 39 | 19 | Vernix [95% (18/19)] Meconium [5% (1/19)] |
| Sherer et al [8] | >37 | 20 | Clear [90% (18/20)] Meconium [10% (2/20)] |
| Kusanovic et al (current study) | 35 – 42 | 10 | Vernix [80% (8/10)] Meconium [10% (1/10)] |
