Evidence map›Paper›PMID 34686164›Full record

ArticleBMC oral health2021

Hydrogeogenic fluoride in groundwater and dental fluorosis in Thai agrarian communities: a prevalence survey and case-control study.

Chanapong Rojanaworarit, Luz Claudio, Nopporn Howteerakul, Auamduan Siramahamongkol, Pattraravith Ngernthong, Pornpimol Kongtip, Susan Woskie

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
1.3field-weighted citation impact, top 22% 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.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
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 5 institutions in 2 countries.

Chanapong RojanaworaritDepartment of Health Professions, School of Health Professions and Human Services, Hofstra University, Hempstead, NY, USA. Chanapong.Rojanaworarit@hofstra.edu.ORCID 0000-0001-7009-7416
Luz ClaudioDepartment of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
Nopporn HowteerakulDepartment of Epidemiology, Faculty of Public Health, Mahidol University, Bangkok, Thailand.
Auamduan SiramahamongkolNakhon Pathom Provincial Public Health Office, Nakhon Pathom, Thailand.
Pattraravith NgernthongNakhon Pathom Provincial Public Health Office, Nakhon Pathom, Thailand.
Pornpimol KongtipDepartment of Occupational Health and Safety, Faculty of Public Health, Mahidol University, Bangkok, Thailand.
Susan WoskieDepartment of Public Health, University of Massachusetts Lowell, Lowell, MA, USA.
Mahidol University · THNakhon Pathom Rajabhat University · THHofstra University · USIcahn School of Medicine at Mount Sinai · USUniversity of Massachusetts Lowell · US

Funding

2/2-GEOHealth Hub-Improving Agricultural Health in Southeast Asia-USU2RTW010088 · FIC · UNIVERSITY OF MASSACHUSETTS LOWELL · PI KONGTIP, PORNPIMOL, WOSKIE, SUSAN · 2015 to 2019
$1.4M
FIC NIH HHS U2R TW010088
6 · The paper itself

Abstract

backgroundDental fluorosis can be a disease of social inequity in access to safe drinking water. This dental public health issue becomes prominent in socially disadvantaged agrarian communities in fluoride endemic areas where the standard irrigation system is unavailable and groundwater containing natural fluoride is the major drinking water source. This study aimed to determine the prevalence and severity of dental fluorosis in children and to evaluate its association with fluoride in groundwater in the aforementioned setting in Thailand.

methodsA cross-sectional survey of 289 children in Nakhon Pathom Province was conducted in 2015. Children with very mild to severe fluorosis were regarded as 'cases' while their counterparts were 'controls' for a subsequent case-control study. Records of fluoride concentrations in groundwater used for household supply corresponding to resident and number of years by age of each child during 2008-2015 were retrieved. Other exposure variables were measured using a questionnaire. Prevalence ratio (PR), a measure indicating the relative effect of different levels of fluoride on dental fluorosis, was obtained from Poisson regression with robust standard error.

resultThere were 157 children with very mild to moderate dental fluorosis (54.3% prevalence). The univariable analysis revealed that the prevalence of dental fluorosis among children with fluoride concentrations in water sources of 0.7-1.49 (index category 1) and ≥ 1.5 ppm (index category 2) was 1.62 (95% CI; 0.78, 3.34) and 2.75 (95% CI; 1.42, 5.31) times the prevalence among those with fluoride < 0.7 ppm (referent category). After adjusting for all covariates, the adjusted prevalence ratios in both index categories were 1.64 (95% CI; 0.24, 11.24) and 2.85 (95% CI; 0.44, 18.52) which were close to their corresponding crude estimates. Since the magnitude of confounding, measured by (PR

conclusionsIn fluoride endemic areas, groundwater containing natural fluoride utilized for household consumption resulted in high dental fluorosis prevalence, particularly in the groundwater with fluoride concentrations of ≥ 1.5 ppm.

Indexed as

Fluorosis, DentalGroundwaterCase-Control StudiesChildCross-Sectional StudiesFluoridesHumansPrevalenceSurveys and QuestionnairesThailandFluoridesDental fluorosisEnvironmental healthEpidemiologyGroundwaterOral health

Identifiers

PMID34686164
PMCPMC8532340
OpenAlexW3186290680

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.