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Objective: The aim of this study was to investigate how the introduction of noninvasive prenatal testing (NIPT) impacted women's testing choices following a positive prenatal screening (PNS) result.
Methods: Beginning in March 2012, women referred to our Prenatal Diagnosis Center following a positive PNS result were offered NIPT or invasive prenatal diagnosis. Rates of invasive testing and declining follow-up were compared with testing decisions the prior year. Differences were compared using t-test and chi-square. Multivariable logistic regression was performed to identify predictors of test choice.
Results: Between March 2012 and February 2013, 398 screen positive women were seen: 156 (39.2%) underwent invasive testing, 157 (39.4%) had NIPT and 84 (21.1%) declined further testing. In the prior year, 638 screen positive patients were seen: 301 (47.2%) had invasive testing and 337 (52.8%) declined. The rate of invasive testing declined significantly (p = 0.012). Moreover, fewer women declined follow-up testing after introduction of NIPT, 21.2% versus 52.8%, p ≤ 0.001. Race/ethnicity and timing of results (first versus second trimester) were predictors of testing choices; payer and maternal age were not.
Conclusion: The introduction of NIPT resulted in a significant decrease in invasive diagnostic testing. Additionally, fewer women declined further testing when NIPT was available.
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| http://dx.doi.org/10.1002/pd.4125 | DOI Listing |
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