Effects of statewide health promotion in primary schools on children's sick days, visits to a physician and parental absence from work: a cluster-randomized trial.

BMC Public Health · 2016 · PMC5153907 · PMID 27955648

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hedged sentence

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closest p

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boldest claim

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highly significantno p-value reported

found a highly significant inverse relationship between academic achievement and absenteeism in fourth-graders in South-Carolina, USA [ 6 ].

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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.