65: First trimester screening in triplets

Nuchal translucency screening in triplets: Down syndrome risk calculation taking account of between‐fetus correlations

“…Information on correlations between NT levels in triplets has also been reported by a large screening laboratory in the United States on 794 women . Results were expressed in delta units and the correlation between the minimum and median values in each set of triplets was 0.65, the correlation between the minimum and maximum was 0.46 and between the median and maximum it was 0.68.…”