Oral health and the impact of socio-behavioural factors in a cross sectional survey of 12-year old school children in Laos.

BMC Oral Health · 2009 · PMC2781791 · PMID 19917089

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an increasing trendno p-value reported

Background In recent decades low-income countries experienced an increasing trend in dental caries among children, particularly recorded in 12-year olds, which is the principal WHO indicator age group for children.

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highly significantno p-value reported

These differences were highly significant for missing and filled teeth.

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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.