ArticlePloS one2017
The association of dietary vitamin C intake with periodontitis among Korean adults: Results from KNHANES Ⅳ.
Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 4 of them syntheses that pooled 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.
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
16 citing papers in PubMed, 4 syntheses or guidelines pooled it, 43 citations in OpenAlex.
- Does Vitamin C Supplementation Provide a Protective Effect in Periodontal Health? A Systematic Review and Meta-Analysis.International journal of molecular sciences · 2024Pooled it
- Vitamin intake and periodontal disease: a meta-analysis of observational studies.BMC oral health · 2024Pooled it
- Possible Involvement of Vitamin C in Periodontal Disease-Diabetes Mellitus Association.Nutrients · 2020Pooled it
- The Relationship between Vitamin C and Periodontal Diseases: A Systematic Review.International journal of environmental research and public health · 2019Pooled it
- Blood and skin carotenoid levels are inversely associated with the prevalence of periodontal diseases in populations with normal occlusion: a cross-sectional analysis from the Iwaki health promotion project.Nutrition journal · 2026Article
- Effect of Nutritional Antioxidants on Periodontal Disease and Periodontal Therapy.Dentistry journal · 2025Review
- Association between composite dietary antioxidant index and the prevalence of periodontitis: results from NHANES 2009-2014.BMC oral health · 2025Article
- The association between diets and periodontitis: a bidirectional two-sample Mendelian randomization study.Frontiers in genetics · 2024Article
- The Role of Vitamin C and Vitamin D in the Pathogenesis and Therapy of Periodontitis-Narrative Review.International journal of molecular sciences · 2023Review
- The association between dietary vitamin C intake and periodontitis: result from the NHANES (2009-2014).BMC oral health · 2022Article
- A Cross-Talk between Diet and the Oral Microbiome: Balance of Nutrition on Inflammation and Immune System's Response during Periodontitis.Nutrients · 2022Review
- The Impact of Chronic Kidney Disease on Nutritional Status and Its Possible Relation with Oral Diseases.Nutrients · 2022Review
- Vitamin C and Omega-3 Fatty Acid Intake Is Associated with Human Periodontitis-A Nested Case-Control Study.Nutrients · 2022Article
- Article
- Dietary Factors Affecting the Prevalence and Impact of Periodontal Disease.Clinical, cosmetic and investigational dentistry · 2021Review
- An Insight and Update on the Analgesic Properties of Vitamin C.Journal of pharmacy & bioallied sciencesReview
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundsThe association of dietary vitamin C (vit C) on periodontitis requires more valid evidence from large representative samples to enable sufficient adjustments. This study aimed to evaluate the association between dietary vit C intake and periodontitis after controlling for various confounders in the representative Korean adult population.
methodA total of 10,930 Korean adults (≥19 years) from the fourth Korean National Health and Nutrition Examination Survey data set were included in this cross-sectional study. Periodontitis was defined as community periodontal index score of 3 or 4. Dietary vit C intake was estimated from a 24-hour dietary record, and categorized into adequate and inadequate according to the Korean Estimated Average Requirement value. Potential confounders included age, sex, income, frequency of tooth brushing, use of floss, dental visit, drinking, smoking, diabetes, hypercholesterolemia, hypertension, and obesity. A multivariable logistic regression analysis and stratified analysis were applied.
resultsThose with inadequate dietary vit C intake were more likely by 1.16 times to have periodontitis than those with adequate dietary vit C intake (adjusted odds ratio [aOR] = 1.16, 95% confidence interval = 1.04-1.29). Lowest and middle-low quartile of dietary vit C intake, compared to highest quartile of dietary vit C intake, showed significant association (aOR = 1.28 and 1.22 respectively), which was in a biological-gradient relationship (trend-p <0.05).
conclusionsOur data showed that inadequate dietary vit C intake was independently associated with periodontitis among Korean adults. Hence, adequate intake of dietary vitamin C could be substantially important on the promotion of periodontal health among Korean adults.
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.