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Long-term effect of prospective detection of high genetic risk on couples' reproductive life: Data for thalassaemia

Petrou, M; Modell, B; Shetty, S; Khan, M; Ward, RHT; (2000) Long-term effect of prospective detection of high genetic risk on couples' reproductive life: Data for thalassaemia. Prenatal Diagnosis , 20 (6) pp. 469-474. 10.1002/1097-0223(200006)20:6<469::AID-PD857>3.0.CO;2-V.

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Abstract

Prospective risk detection with availability of prenatal diagnosis is the best service currently available for couples at high genetic risk Here we describe the long term effect of this service on the reproductive life of 102 couples at risk of thalassaemia, whose risk was detected prospectively by carrier screening, who made use of prenatal diagnosis, and where the woman is now over 40. Overall outcome for couples is described in terms of number of favourable versus unfavourable pregnancy outcomes. (A favourable pregnancy outcome = unaffected livebirth, or affected livebirth resulting from informed parental choice.) The 102 couples had a total of 356 pregnancies, including 302 viable pregnancies, and 88% achieved a family unburdened by thalassaemia. 68% of viable pregnancies had a favourable outcome, but only 43% of couples had only favourable outcomes, and 26% lost two or more viable wanted pregnancies. When early losses are included 58% of pregnancies had a favourable outcome, but only 30% of couples had only favourable outcomes, and 41% lost two or more pregnancies. Even with the best available service, at risk couples remain victims of chance, and a significant minority experience great difficulty in obtaining even one healthy child. Research is needed on approaches that may allow couples better control of reproductive outcomes. Copyright (C) 2000 John Wiley and Sons, Ltd.

Type: Article
Title: Long-term effect of prospective detection of high genetic risk on couples' reproductive life: Data for thalassaemia
DOI: 10.1002/1097-0223(200006)20:6<469::AID-PD857>3.0.CO;2-V
UCL classification: UCL > School of Life and Medical Sciences
UCL > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health Care
UCL > School of Life and Medical Sciences > Faculty of Population Health Sciences > Institute of Epidemiology and Health Care > Primary Care and Population Health
URI: http://discovery.ucl.ac.uk/id/eprint/1547874
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