Gestational age at delivery and special educational need: retrospective cohort study of 407,503 schoolchildren.

PLoS Med · 2010 · PMC2882432 · PMID 20543995

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a strong trendno p-value reported

Discussion Our study demonstrated a strong trend of decreasing risk of SEN with advancing gestational age at birth.

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a significant trendno p-value reported

Therefore, the investigators were unable to determine whether there was a significant trend across the spectrum of gestational age.

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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.