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Factors affecting low fetal fraction in fetal screening with cell-free DNA in pregnant women: a systematic review and meta-analysis by Mousavi, Sanaz (author);Shokri, Ziba (author);Bastani, Parvin (author);Ghojazadeh, Morteza (author);Riahifar, Sevda (author);Nateghian, Hooman (author) is a Medicine article available to read on EtoBox.
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## Abstract ## Background Cell-Free DNA (cfDNA) is a non-invasive perinatal test (NIPT) used to assess fetal anomalies. The ability to detect fetal chromosomal aneuploidies is directly related to a sample’s fetal to total DNA fraction, known as the fetal fraction (FF). The minimum FF is considered 4%, and the test result below 4% is uncertain due to low fetal fraction (LFF). This study aimed to conduct a systematic review and a meta-analysis to determine the possible factors affecting LFF in cfDNA testing for fetal screening. ## Methods PubMed, Web of Science, Google Scholar, Since Direct, Scopus, CINHAL, Cochrane Library, and Persian databases, including Scientific Information Database, Irandoc, and Magiran were searched for studies investigating factors affecting LFF in cfDNA testing from 2000 until the end of 2021. Gathered data were analyzed using Comprehensive Meta-Analysis (CMA) software version 3.3.070. The quality of the included studies was assessed using the Joanna Briggs Institute Critical Appraisal of Cohort Studies tool. ## Results Thirteen articles related to the topic were included, and seven related articles were reviewed for meta-analysis. The other six were review
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- Author
- Mousavi, Sanaz (author);Shokri, Ziba (author);Bastani, Parvin (author);Ghojazadeh, Morteza (author);Riahifar, Sevda (author);Nateghian, Hooman (author)
- Publisher
- Springer Science and Business Media LLC
- Published
- 2022
- Language
- EN
- Field
- Medicine (Health Sciences)