![]() Neither NSGC nor the Foundation guarantees, or take any responsibility whatsoever for, the accuracy of the results generated by the Calculator. Proper use of the Calculator requires that the user (i) input accurate data and (ii) have sufficient understanding of the methodology used and relevance of the results generated. The values generated by the Calculator should not be construed as dictating an exclusive course of management, nor does the use of such predictive values guarantee a particular outcome. ![]() The Calculator uses statistical calculations based on the information provided by the user to determine the predictive values of NIPT/Cell Free DNA Screening utilizing prevalence information based on mateage and population study. Use of the Calculator does not create any provider-patient relationship with the Foundation, NSGC or their respective committee or board members, or Sound Information Services, LLC. The Calculator is provided for educational and informational purposes only, and neither the Perinatal Quality Foundation (“Foundation”) nor the National Society of Genetic Counselors (“NSGC”) approves or endorses any specific values, methods, practices, or sources of information. The Calculator should not be used to provide risk assessment independent of clinical correlation/context and is not intended to replace a health care professional’s best medical judgment based on the clinical circumstances. The Calculator is intended to aid such healthcare professionals in counseling their patients about PPV and NPV relative to certain non-invasive prenatal tests (“NIPT”) and the clinical meaning of the patient’s screening results. The NIPT/Cell Free DNA Screening Performance Calculator (“Calculator”), also known as "NIPT/cfDNA Performance Calculator", is provided solely for use by healthcare professionals with an understanding of positive predictive value (“PPV”) and negative predictive value (“NPV”). ![]()
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