ArticleJournal of genetic counseling2018
Investigating Pregnancy Outcomes After Abnormal Cell-Free DNA Test Results.
Article in Journal of genetic counseling, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
4 authors.
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Abstract
Cell-free DNA (cfDNA) testing has increased sensitivity and specificity compared to other prenatal screening methods, but invasive diagnostic testing (IDT) is recommended for confirmation. We performed a retrospective chart review of 39 women with abnormal cfDNA results between March 2012 and September 2015 at an urban academic hospital to evaluate patient choice and pregnancy outcomes. We analyzed data using descriptive statistics, Fisher's exact tests, and Wilcoxon rank-sum tests. Median maternal age was 36.0 years [interquartile range (IQR) 31, 39]; 64.1% of women (25/39) were advanced maternal age and 69.2% (27/39) had abnormal ultrasounds. Median gestational age at time of cfDNA testing was 18 3/7 weeks [IQR 12 2/7, 20 5/7]. cfDNA results included trisomy 21 (89.7%, 35/39), trisomy 18 (7.7%, 3/39), and both trisomy 21/monosomy X (2.6%, 1/39). Of 39 women, 22 (56.4%) continued and 10 (25.6%) terminated the pregnancy; six (15.4%) had fetal demises, and one was lost to follow-up. Of women continuing their pregnancies, 54.6% (12/22) declined further genetic counseling, and 77.3% (17/22) declined IDT. Only 14 women pursued IDT; not pursuing IDT was associated with continuing the pregnancy (Fisher's exact test, p = .001). All women terminating their pregnancy (90.0%, 9/10) pursued IDT or had major anomalies on ultrasound, suggesting that women considering termination undergo more confirmatory tests or already have high suspicion for an abnormal pregnancy.
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