Evidence map›Paper›PMID 34749715›Full record

ArticleBMC oral health2021

Number of teeth is associated with all-cause and disease-specific mortality.

Yau-Hua Yu, Wai S Cheung, Bjorn Steffensen, Donald R Miller

Abstract 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 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
–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

31 citing papers in PubMed, 2 syntheses or guidelines pooled it.

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4 · The record

Corrections and comments

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    2022
5 · Who and what money

Authors and funding

4 authors.

Yau-Hua YuDepartment of Periodontology, Tufts University School of Dental Medicine, One Kneeland Street, Boston, MA, 02111, USA. Yau-Hua.Yu@tufts.edu.
Wai S CheungDepartment of Periodontology, Tufts University School of Dental Medicine, One Kneeland Street, Boston, MA, 02111, USA.
Bjorn SteffensenDepartment of Periodontology, Tufts University School of Dental Medicine, One Kneeland Street, Boston, MA, 02111, USA.
Donald R MillerCenter for Healthcare Organization and Implementation Research, Edith Nourse Rogers Memorial Veterans Hospital, VA Bedford Health Care System, Bedford, MA, USA.

Funding

Exploring genomic determinants of periodontal disease via shared genetic pathways with cardiovascular disease, diabetes, and bone densityK23DE026804 · NIDCR · TUFTS UNIVERSITY BOSTON · PI YU, YAU-HUA · 2017 to 2021
$685k
NIDCR NIH HHS K23 DE026804NIDCR NIH HHS L30 DE028110
6 · The paper itself

Abstract

backgroundTooth loss has been shown to correlate with multiple systemic comorbidities. However, the associations between the number of remaining natural teeth (NoT) and all-cause mortality have not been explored extensively. We aimed to investigate whether having fewer NoT imposes a higher risk in mortality. We tested such hypotheses using three groups of NoT (20-28,10-19, and 0-9), edentulism and without functional dentition (NoT < 19).

methodsThe National Health and Nutrition Examination Survey in the United States (NHANES) (1999-2014) conducted dental examinations and provided linkage of mortality data. NHANES participants aged 20 years and older, without missing information of dental examination, age, gender, race, education, income, body-mass-index, smoking, physical activities, and existing systemic conditions [hypertension, total cardiovascular disease, diabetes, and stroke (N = 33,071; death = 3978), or with femoral neck bone mineral density measurement (N = 13,131; death = 1091)] were analyzed. Cox proportional hazard survival analyses were used to investigate risks of all-cause, heart disease, diabetes and cancer mortality associated with NoT in 3 groups, edentulism, or without functional dentition.

resultsParticipants having fewer number of teeth had higher all-cause and disease-specific mortality. In fully-adjusted models, participants with NoT0-9 had the highest hazard ratio (HR) for all-cause mortality [HR(95%CI) = 1.46(1.25-1.71); p < .001], mortality from heart diseases [HR(95%CI) = 1.92(1.33-2.77); p < .001], from diabetes [HR(95%CI) = 1.67(1.05-2.66); p = 0.03], or cancer-related mortality [HR(95%CI) = 1.80(1.34-2.43); p < .001]. Risks for all-cause mortality were also higher among the edentulous [HR(95%CI) = 1.35(1.17-1.57); p < .001] or those without functional dentition [HR(95%CI) = 1.34(1.17-1.55); p < .001].

conclusionsHaving fewer NoT were associated with higher risks for all-cause mortality. More research is needed to explore possible biological implications and validate our findings.

Indexed as

Cardiovascular DiseasesDiabetes MellitusTooth LossHumansNutrition SurveysProportional Hazards ModelsRisk FactorsUnited StatesCardiovascular diseasesDiabetesEdentulismFemoral neck bone mineral densityHypertensionMortalityStrokeTooth loss

Identifiers

PMID34749715
PMCPMC8574051

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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.