The global effect of maternal education on complete childhood vaccination: a systematic review and meta-analysis.

BMC Infect Dis · 2017 · PMC5745980 · PMID 29281990

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a positive trendno p-value reported

Only two studies showed decreased odds between lowest and highest education levels, with the rest all showing a positive trend.

also in 11,005 other papers

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.