Prenatal and preimplantation genetic diagnosis for single gene disorders: A population-based study from 1977 to 2016

Abstract

OBJECTIVE: To examine the statewide utilisation of prenatal diagnosis (PNDx) and preimplantation genetic diagnosis (PGT-M) for single gene disorders. METHODS: Population-based study of all women utilising PNDx in the Australian state of Victoria from 1977 to 2016. Single gene disorders were categorised using a systematic approach that aimed to reflect aspects of the PNDx decision-making process. Data on PGT-M for single gene disorders from 2005 to 2016 were similarly examined for comparison. Statistical significance testing was performed with χ2 test. RESULTS: Following an initial uptake period, annual PNDx rates for single gene disorders stabilised between 1.3 and 2.2 per 1000 births after ..