Demographic Assessment of Down Syndrome: A Systematic Review.

Int J Environ Res Public Health · 2021 · PMC7796484 · PMID 33466470

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an increasing trendno p-value reported

As is shown in Figure 3 , twelve studies (55%) showed a clear decrease in birthrate, while only five studies (23%) found an increasing trend in the period studied, and five (23%) found an unclear direction.

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