Evidence map›Paper›PMID 34579707›Full record

ArticleBMC oral health2021

Serum 25-hydroxyvitamin D is negatively associated with severe periodontitis: a cross-sectional study.

Fangjing Zhou, Ning Ma, Ruiting Su, Xiaoyu He, Xiaona Wang, Yang Zhou, Jing Shi

Open access · goldAbstract read
In one paragraph

Article in BMC oral health, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
2.5field-weighted citation impact, top 10% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

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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

7 authors at 2 institutions in 1 country.

Fangjing ZhouShanxi Medical University School and Hospital of Stomatology, Taiyuan, 030012, Shanxi Province, China.
Ning MaShanxi Medical University School and Hospital of Stomatology, Taiyuan, 030012, Shanxi Province, China.
Ruiting SuShanxi Medical University School and Hospital of Stomatology, Taiyuan, 030012, Shanxi Province, China.
Xiaoyu HeShanxi Medical University School and Hospital of Stomatology, Taiyuan, 030012, Shanxi Province, China.
Xiaona WangDepartment of Oral Medicine, The Fifth Clinical Medical College of Shanxi Medical University, 22 Shuangtasi Street, Taiyuan, 030012, Shanxi Province, China.
Yang ZhouDepartment of Emergency Medicine, The Second Xiangya Hospital of Central South University, 139 Renmin road, Changsha, 410011, Hunan Province, China.
Jing ShiDepartment of Oral Medicine, The Fifth Clinical Medical College of Shanxi Medical University, 22 Shuangtasi Street, Taiyuan, 030012, Shanxi Province, China. crystalshi@163.com.
Shanxi Medical University · CNSecond Xiangya Hospital of Central South University · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundPeriodontitis can lead to the destruction of periodontium and adversely influence the overall health, wellbeing, and quality of life. However, studies on the relationship between severe periodontitis and serum 25-hydroxyvitamin D [25(OH)D] are limited. This study is designed to explore the relationship between 25(OH)D and severe periodontitis.

methodsA cross-section study of 2928 participants enrolled from the National Health and Nutrition Examination Survey (NHANES) from 2013 to 2014 was conducted. The periodontal examination was performed using a total oral periodontal examination program, and probe measurements were collected at six sites per tooth in NHANES. Severe periodontitis was characterized as: ≥ 2 interproximal sites with attachment loss (AL) ≥ 6 mm (not on the same tooth) and ≥ 1 interproximal site with probing depth (PD) ≥ 5 mm. Severe periodontitis and serum 25(OH)D were the dependent and independent variables, respectively. Univariate, multivariate, and subgroup analyses were performed to explore the relationship between severe periodontitis and serum 25(OH)D.

resultsAmong the 2928 participants, the average age of the population was 50 ± 13.71 years old, with 1425 (48.67%) males, 316 (10.79%) exhibited severe periodontitis. Serum 25(OH)D showed a significantly negative association with severe periodontitis after adjusting all variables (OR 0.75, 95% CI 0.63-0.89). In addition, severe periodontitis has a nonlinear relationship with serum 25(OH)D, whoes inflection point was 102 (nmol/L). On the left side of the inflection point (25(OH)D ≤ 102 nmol/L), the effect size was 0.98 and 95%CI was 0.98-0.99 (25(OH)D per 1 nmol/L increments). On the right side of the inflection point (25(OH)D > 102 nmol/L), the effect size was 0.99 and 95% CI was 0.98-1.01. The subgroup analysis showed pronounced changes in non-Hispanic white, alcohol consumption, diabetes, and health insurance.

conclusionSerum 25 (OH) D in relation to severe periodontitis is nonlinear in our study.When serum 25 (OH) D is less than 102 nmol/L, serum 25 (OH) D is negatively associated with severe periodontitis.

Indexed as

PeriodontitisQuality of LifeAdultCross-Sectional StudiesHumansMaleMiddle AgedNutrition SurveysVitamin D25-hydroxyvitamin DVitamin D25-hydroxyvitamin DNHANESPeriodontal diseasePeriodontitisVitamin D

Identifiers

PMID34579707
PMCPMC8477570
OpenAlexW3201996644

What OpenQuestion holds

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Registered trials

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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.