Evidence map›Paper›PMID 35361164›Full record

ArticleBMC oral health2022

Iron deficiency anemia associated factors and early childhood caries in Qingdao.

Shuaiqi Ji, Xiaohang Guan, Lei Ma, Pingping Huang, Hao Lin, Rui Han

Open access · goldAbstract read
In one paragraph

Article in BMC oral health, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
3.5field-weighted citation impact, top 6% 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, 1 synthesis or guideline pooled it, 23 citations in OpenAlex.

  1. Association Between Iron Deficiency Anemia and Dental Caries in Children: A Systematic Umbrella Meta-Analysis.Journal of human nutrition and dietetics : the official journal of the British Dietetic Association · 2025
    Pooled it
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  7. Review
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  11. Oral manifestations of iron imbalance.Frontiers in nutrition · 2023
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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

6 authors at 2 institutions in 1 country.

Shuaiqi JiDepartment of Stomatology, the Affiliated Hospital of Qingdao University, Wutaishan Road & 1677, Qingdao City, 266003, Shandong, China.
Xiaohang GuanHexi Clinic of Tianjin Stomatological Hospital, Tian Jin, 300000, China.
Lei MaDepartment of Stomatology, the Affiliated Hospital of Qingdao University, Wutaishan Road & 1677, Qingdao City, 266003, Shandong, China.
Pingping HuangDepartment of Stomatology, the Affiliated Hospital of Qingdao University, Wutaishan Road & 1677, Qingdao City, 266003, Shandong, China.
Hao LinDepartment of Stomatology, the Affiliated Hospital of Qingdao University, Wutaishan Road & 1677, Qingdao City, 266003, Shandong, China.
Rui HanDepartment of Stomatology, the Affiliated Hospital of Qingdao University, Wutaishan Road & 1677, Qingdao City, 266003, Shandong, China. hanruiyezi@sina.com.ORCID 0000-0003-2353-9386
Qingdao University · CNTianjin Stomatological Hospital · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIron deficiency anemia (IDA) has been shown to be related to early childhood caries (ECC). However, data on the relationship, if any, between IDA-associated factors and ECC remain scant. This study aimed to explore the interplay between IDA-associated factors and ECC.

methodsThis study randomly sampled a total of 1598 children in Qingdao city, and analyzed the severity of ECC using decayed-missing-filled teeth index, while the rate of caries was analyzed following the WHO recommendations. The correlation between IDA and ECC was analyzed by both the chi-square test and Mann-Whitney U test. In addition, we designed an electronic questionnaire and employed the disordered multi-classification logistic regression to interrogate the relationship between the IDA-associated factors and ECC.

resultsChildren with IDA had higher rates and severe ECC than those without IDA (p < 0.001). Children who were breastfed until 2 years old had a higher risk of IDA and ECC, compared to those who were not {OR 3.453 (1.681-7.094)}. Compared with children who had no history of IDA at the age of 2 years or below, those with IDA history had a higher risk of IDA and ECC {OR 8.762 (3.648-21.041)}. In addition, children who had a maternal history of IDA at pregnancy were at a higher risk of IDA and ECC compared to those who had no IDA history at pregnancy {OR 4.913 (2.934-8.226)}. Our data showed that children from a family with an annual income lower than 50,000 Renminbi (RMB) had a higher risk of IDA and ECC compared to those with an annual family income higher than 200,000 RMB {OR 3.421 (1.505-7.775)}. On the other hand, compared with children taking iron supplements, children who did not were at a higher risk of ECC and IDA {OR 5.602 (1.858-16.896)}.

conclusionFactors such as low family income, history of IDA in children aged 2 years or younger, IDA history during pregnancy, children breastfed until 2 years old, and those not taking iron supplements were significantly associated with the occurrence of ECC and IDA.

Indexed as

Anemia, Iron-DeficiencyDental CariesIron DeficienciesChildChild, PreschoolDental Caries SusceptibilityHumansSurveys and QuestionnairesEarly childhood cariesIron deficiency anemiaIron intake

Identifiers

PMID35361164
PMCPMC8973523
OpenAlexW4220891572

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.