Evidence map›Paper›PMID 29730614›Full record

ArticleBMJ open2018

Evaluation of the association between sleep duration and tooth loss among Korean adults: data from the Korean National Health and Nutrition Examination Survey (KNHANES 2012-2014).

Kyungdo Han, Jun-Beom Park

Open access · goldAbstract read
In one paragraph

Article in BMJ open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 17% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 26 citations in OpenAlex.

  1. Association of edentulism and obstructive sleep apnea: A systematic review.Journal of prosthodontics : official journal of the American College of Prosthodontists · 2025
    Pooled it
  2. Article
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  7. Sleep and periodontal health.Periodontology 2000 · 2024
    Review
  8. Article
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  11. Implications of sleep disorders for periodontitis.Sleep & breathing = Schlaf & Atmung · 2023
    Review
  12. Sleep, physical activity, and sedentary behaviors as factors related to depression and health-related quality of life among older women living alone: a population-based study.European review of aging and physical activity : official journal of the European Group for Research into Elderly and Physical Activity · 2023
    Article
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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

2 authors at 1 institution in 1 country.

Kyungdo HanDepartment of Biostatistics, College of Medicine, Catholic University of Korea, Seoul, Republic of Korea.
Jun-Beom ParkDepartment of Periodontics, College of Medicine, Catholic University of Korea, Seoul, Republic of Korea.ORCID 0000-0002-8915-1555
Catholic University of Korea · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThis study assessed the association between sleep duration and tooth loss using nationally representative data. In this study, a cross-sectional analysis was performed using multivariable logistic regression analysis models.

settingThe present study analysed data from the Korean National Health and Nutrition Examination Survey between 2012 and 2014.

participantsA total of 14 675 respondents over 19 years old without missing values were included in this study. EXPOSURE AND PRIMARY OUTCOME MEASURES: Sleep duration and tooth loss.

resultsParticipants with a sleep duration of 6-8 hours showed the lowest prevalence of diabetes mellitus, hypertension, metabolic syndrome, periodontitis and meeting the waist circumference criteria for metabolic syndrome. Adjusted OR and their 95% CI of male individuals with fewer than 25 natural teeth were 1.426 (1.113 to 1.827), 1.290 (1.074 to 1.548), 0.988 (0.853 to 1.145), 1 (reference), 1.058 (0.907 to 1.235) and 1.620 (1.287 to 2.038) for sleep duration of 4 hours or less, 5 hours, 6 hours, 7 hours, 8 hours and 9 hours or more, respectively (p<0.05), after adjustments for age, sex, smoking, drinking, walking, frequency of tooth brushing per day, body mass index and periodontitis.

conclusionsOur findings showed the U-shaped association between sleep duration and tooth loss was suggested by multiple logistic regression analyses after adjusting for confounding factors. Moreover, subgroup analyses showed that short and long sleep duration were associated with greater tooth loss in participants without diabetes mellitus, those without hypertension and those without metabolic syndrome.

Indexed as

AdultBody Mass IndexConfounding Factors, EpidemiologicCross-Sectional StudiesDiabetes MellitusFemaleHumansHypertensionLogistic ModelsMaleMetabolic SyndromeMiddle AgedMultivariate AnalysisNutrition SurveysPeriodontitisRepublic of Koreaepidemiologyhealth surveysoral healthsleeptooth loss

Identifiers

PMID29730614
PMCPMC5942464
OpenAlexW2799440457

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
Read underepoch 390

Registered trials

None linked

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.