Clinical Study
Influence of Second-Trimester Ultrasound Markers for Down Syndrome in Pregnant Women of Advanced Maternal Age
Table 3
Correlation between ultrasound markers and Down syndrome.
| Marker | Down syndrome | Statistical analysis | Present | Absent |
| Nuchal fold thickness ≥ 6 mm | 12/31 | 35/858 | | Intracardiac hyperechogenic focus | 4/31 | 35/858 | | Short femur length | 1/31 | 2/858 | | Structural malformation | 6/31 | 26/858 | | Duodenal Atresia | 1 | 5 | | Esophageal Atresia | 1 | 4 | Cystic Hygroma | 3 | 0 | Meningomyelocele | 0 | 6 | Spina Bifida | 0 | 4 | Congenital heart disease | 1 | 2 | Hydrocephalus | 0 | 5 |
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