Increasing maternal age increases the likelihood of trisomy in offspring.
Is it true that increasing maternal age increases the likelihood of trisomy in offspring?
Yes. Multiple clinical studies and genomic analyses consistently demonstrate that advancing maternal age significantly increases the likelihood of fetal chromosomal trisomies.
Verdict: SUPPORTED · 7 sources for, 0 against · Last checked
The retrieved papers overwhelmingly support the well-established medical consensus that advanced maternal age correlates with a higher rate of chromosomal nondisjunction and increased incidence of fetal trisomies.
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BD, R., L, D., & JA, K. (2025). Society for Maternal-Fetal Medicine Consult Series #74: Cell-free DNA screening for aneuploidies: Updated guidance.. doi.org. https://doi.org/10.1002/pmf2.70139
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MS, R., MM, P., & MT, I. (2025). The Multifactorial Causes of Down Syndrome During Pregnancy: A Narrative Review of Genetic, Environmental, and Maternal Influences.. doi.org. https://doi.org/10.1002/hsr2.71615
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S, A., AWS, K., M, S., & V, A. (2026). Genomic risk profiling in advanced maternal age: a Tamil Nadu prenatal study.. doi.org. https://doi.org/10.3389/fmed.2026.1864106
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X, Z., X, Z., & X, W. (2026). Analysis of diagnostic consistency rate and pregnancy outcomes in pregnant women with high-risk NIPT undergoing transabdominal amniocentesis.. doi.org. https://doi.org/10.62347/juia1368
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K, T., G, B., N, O., D, D., J, P., O, T., & G, D. (2026). Pilot Evaluation of ddPCR-Based NIPT for Fetal Trisomy Screening in Advanced Maternal Age Pregnancies in Mongolia. doi.org. https://doi.org/10.20944/preprints202606.0972.v1
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J, L., B, C., Y, X., J, W., X, A., Y, Z., J, G., R, L., J, P., C, D., Y, M., F, G., Y, Z., S, L., J, M., C, W., J, F., J, C., B, L., H, Z., C, Z., & Y, X. (2026). Risk factors associated with meiotic errors in blastocysts with mosaic results on biopsy.. doi.org. https://doi.org/10.1093/hropen/hoag067
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L, W., P, L., W, H., M, L., J, Y., & S, X. (2026). The genetic etiology of spontaneous abortion: insights from chromosomal microarray analysis and whole-exome sequencing.. doi.org. https://doi.org/10.1038/s41598-026-53777-w
What does the evidence say?
The retrieved papers overwhelmingly support the well-established medical consensus that advanced maternal age correlates with a higher rate of chromosomal nondisjunction and increased incidence of fetal trisomies.
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