Evidence map›Paper›PMID 41626616›Full record

ArticleFrontiers in nutrition2026

Association between a novel Dietary Index for Gut Microbiota and periodontitis: a cross-sectional study.

Xinlian Zhang, Xia Lv, Li Zhang, Tingting Jia, Sainan Zhao

Abstract read
In one paragraph

Article in Frontiers in nutrition, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
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

1 citing paper in PubMed.

  1. Review
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.

Xinlian ZhangDepartment of Stomatology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China.
Xia LvDepartment of Stomatology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China.
Li ZhangDepartment of Stomatology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China.
Tingting JiaDepartment of Stomatology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China.
Sainan ZhaoDepartment of Stomatology, Affiliated Hospital of Shandong University of Traditional Chinese Medicine, Jinan, Shandong, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: The gut microbiota and periodontitis have attracted increasing research interest. The Dietary Index for Gut Microbiota (DI-GM), a novel metric for assessing gut microbiome diversity, has not yet been investigated in relation to periodontitis. Methods: This cross-sectional study analyzed data from the 2009-2014 National Health and Nutrition Examination Survey including 9,978 participants aged 30-80 years who had periodontal examination records. Participants were categorized into two groups: no periodontitis ( Results: A higher DI-GM score was inversely associated with periodontitis (odd ratio [OR] = 0.94, 95% confidence interval [CI]: 0.91-0.97). Similarly, a higher beneficial microbiota score was linked to a lower prevalence of periodontitis (OR = 0.90, 95% CI: 0.87-0.94). After adjustment, DI-GM remained inversely associated with moderate (OR = 0.94, 95% CI: 0.91-0.97) and severe periodontitis (OR = 0.89, 95% CI: 0.85-0.94; both Conclusion: The newly proposed DI-GM demonstrated an inverse association with the prevalence of periodontitis, with BMI acting as a significant mediator in this relationship.

Indexed as

body mass index (BMI)cross-sectional studyDietary Index for Gut Microbiota (DI-GM)NHANESperiodontitis

Identifiers

PMID41626616
PMCPMC12857318

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