National and regional Temporal trends and forecasting of preterm birth in brazil: evidence from National birth data (2014-2023) with projections to 2030.

BMC Pregnancy Childbirth · 2025 · PMC12751667 · PMID 41350684

Europe PMC DOI

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an increasing trendno p-value reported

In absolute numbers, around 2.8 million PTB were documented, showing an increasing trend over the period.

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a decreasing trendno p-value reported

Only Maranhão showed a decreasing trend (AAPC: − 0.54%), while 13 states displayed stable rates throughout the period.

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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.