Maternal serum free β‐human chorionic gonadotrophin levels in twin pregnancies: Implications for screening for down's syndrome
- 1 April 1994
- journal article
- research article
- Published by Wiley in Prenatal Diagnosis
- Vol. 14 (4) , 319-320
- https://doi.org/10.1002/pd.1970140415
Abstract
Free β-human chorionic gonadotrophin values are, on average, 1·90 times greater in twin pregnancies than in singleton pregnancies [95 per cent confidence interval (CI) 1·69–2·13]. This information can be used in screening for Down's syndrome, so that twin pregnancies can be interpreted in addition to singleton pregnancies.Keywords
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