ArticleScientific reports2025
Association between conicity index and prevalence of periodontitis in US adults: the 2009-2014 NHANES cross-sectional study.
Article in Scientific reports, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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.
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.
Who cites it
1 citing paper in PubMed.
- Associations between periodontal disease-induced immune cell activation and energy metabolism.Frontiers in immunology · 2026Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
This study investigated the relationship between periodontitis and the Conicity Index (C-index) in the United States. The National Health and Nutrition Examination Survey (NHANES), conducted from 2009 to 2014, found that 5233 out of 10,327 respondents aged 30 years or older had periodontitis. After adjusting for all confounding variables, the likelihood of periodontitis prevalence increased by 13% for every unit rise in the C-index (OR 1.13, 95% CI 1.05, 1.21). A three-category sensitivity analysis of the C-index revealed that the highest group had a 24% greater prevalence of periodontitis compared to the lowest group (OR 1.24, 95% CI 1.07, 1.43). There was no gender difference in the linear and positive correlation between the C-index and the prevalence of periodontitis. Subgroup analyses demonstrated no significant interactions in most subgroups. Additionally, sensitivity analyses that adjusted for missing covariates and physical activity further validated the robustness of the results, confirming that the C-index is independently associated with periodontitis prevalence. Finally, Receiver Operating Characteristic (ROC) analysis indicated that the C-index outperformed Body Mass Index (BMI) and Waist Circumference (WC) in predicting periodontitis, suggesting its potential for early screening. Overall, the C-index, as an indicator of abdominal obesity, reflects not only generalized obesity but is also independently associated with periodontitis prevalence, providing a new and potentially valuable tool for early screening. Notably, the predictive ability of the C-index for periodontitis was significantly superior to that of traditional BMI and WC, indicating higher sensitivity in the early diagnosis and assessment of periodontitis. The clinical application of the C-index can assist healthcare professionals in identifying high-risk individuals at an early stage, enabling timely interventions that may reduce the incidence of periodontitis and subsequent oral health issues.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
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.