Conclusion
Down Syndrome rates increased over time among individuals who identify as Black, Hispanic, or AIAN, but not among white or Asian individuals

https://www.ajog.org/article/S0002-9378(21)01994-3/fulltext

https://web.archive.org/web/20220827111036/https://www.ajog.org/article/S0002-9378(21)01994-3/fulltext