Temporal trends and adverse perinatal outcomes of twin pregnancies at differing gestational ages: an observational study from China between 2012-2020.

BMC Pregnancy Childbirth · 2022 · PMC9164484 · PMID 35659606

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a decreasing trendno p-value reported

Adverse perinatal outcomes, including stillbirth, SGA, and low Apgar scores showed a decreasing trend.

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an increasing trendno p-value reported

From 2012 to 2020, the twinning rate showed an increasing trend.

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Quoted from the open-access full text in Europe PMC under the licence the publisher applied. The sentence is reproduced exactly as published; the emphasis is ours.