cfDNA PPV Calculator

1.0

David Deschamps

0.00

0 reviews

Free

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About cfDNA PPV Calculator

cfDNA PPV Calculator is an overall app developed by David Deschamps.

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App Information

cfDNA PPV Calculator is FREE to download. The APK download size is 663.00 kB. The latest version available is 1.0. The last update was on February 17, 2026.

Technical Requirements

The app has a content rating of High Maturity. The app has been available on Google Play February 2026.

Description

This Cell Free Fetal DNA PPV Calculator estimates positive predictive value (PPV) and negative predictive value (NPV) for prenatal cell-free DNA (cfDNA) screening using Bayesian probability.

Conditions supported:
• Trisomy 21
• Trisomy 18
• Trisomy 13
• Monosomy X (45,X)
• 47,XXY
• 47,XYY
• 47,XXX

For autosomal trisomies, pretest probability may be derived from maternal-age population risk tables (midtrimester risk by age at term). For sex chromosome aneuploidies, pretest probability can be entered as population prevalence (1 in N). Sensitivity and specificity are user-editable to reflect lab-specific performance.

This app is for screening support and educational use. It does not provide a diagnosis. Positive screening results should be confirmed with diagnostic testing and clinical correlation.

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More data about cfDNA PPV Calculator

Price	Free to download
Rating	No ratings
Ranking	Not ranked
Version	1.0
App download size	663.0 KB
Maturity	High Maturity

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Developer information for David Deschamps

David Deschamps

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