Evidence map›Paper›PMID 28086936›Full record

ArticleBMC oral health2017

Association between Low blood lead levels and increased risk of dental caries in children: a cross-sectional study.

Young-Suk Kim, Mina Ha, Ho-Jang Kwon, Hae-Young Kim, Youn-Hee Choi

Open access · goldAbstract read
In one paragraph

Article in BMC oral health, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
1.3field-weighted citation impact, top 23% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

11 citing papers in PubMed, 28 citations in OpenAlex.

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  9. Oral antimicrobial activity weakened in children with electronic waste lead exposure.Environmental science and pollution research international · 2020
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 3 institutions in 1 country.

Young-Suk KimDepartment of Dental Hygiene, U1 University, Yeongdong, Korea.
Mina HaDepartment of Preventive Medicine, Dankook University College of Medicine, 119 Dandae-ro, Dongnam-gu, Cheonan, Chungnam, 31116, Republic of Korea. minaha@dku.edu.ORCID http://orcid.org/0000-0003-1308-260X
Ho-Jang KwonDepartment of Preventive Medicine, Dankook University College of Medicine, 119 Dandae-ro, Dongnam-gu, Cheonan, Chungnam, 31116, Republic of Korea.
Hae-Young KimDepartment of Health Policy and Management, College of Health Science, and Department of Health Science, Graduate School, Korea University, Seoul, Korea.
Youn-Hee ChoiDepartment of Preventive Dentistry, School of Dentistry, Kyungpook National University, Daegu, Korea.
Dankook University · KRKorea University · KRKyungpook National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe objective of this study was to examine the association between low blood lead levels of <5 μg/dL and the development of dental caries among children.

methodsThe Children's Health and Environment Research (CHEER) group recruited a cohort of 7,059 school-aged children from six Korean cities. The final study populations in the permanent and deciduous teeth groups were 1,564 and 1,241 children, respectively, after excluding 4 children with blood lead levels of >5 μg/dL. Compared with the children who did not have dental caries, the risk of having dental caries according to blood lead level was estimated by using the zero-inflated negative binomial model.

resultsThe geometric mean (geometric standard deviation, maximum) blood lead level was 1.53 μg/dL (1.57, 4.89 μg/dL), and 74.4% of children had a level of <2 μg/dL. Blood lead level was significantly higher in the children with than in those without deciduous dental caries (1.59 vs. 1.51 μg/dL), similarly with permanent dental caries (1.65 vs. 1.51 μg/dL). After adjustment for covariates, deciduous teeth surfaces that were decayed and filled increased significantly with increasing blood lead levels in a dose-dependent manner (prevalence ratio, 1.14; 95% confidence interval: 1.02-1.27). However, the risk of having dental caries in permanent teeth was not linearly associated with the increase in blood lead level.

conclusionsIn the sum of decayed and filled surfaces, we found a significant increase in risk of dental caries of the deciduous teeth with an increase in blood lead levels (<5 μg/dL) but found no statistical significance in the association with decayed and filled surfaces of caries separately.

Indexed as

ChildCross-Sectional StudiesDental CariesDMF IndexFemaleHumansLeadMaleRepublic of KoreaRisk FactorsLeadBlood leadChildrenDeciduous dentitionDental caries

Identifiers

PMID28086936
PMCPMC5237218
OpenAlexW2577130143

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.