Evidence map›Paper›PMID 20505766›Full record

ArticlePloS one2010

An Environment-Wide Association Study (EWAS) on type 2 diabetes mellitus.

Chirag J Patel, Jayanta Bhattacharya, Atul J Butte

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 292 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
292citing papers in PubMed, 7 pooled it
28.2field-weighted citation impact, top 1% 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

292 citing papers in PubMed, 7 syntheses or guidelines pooled it, 579 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Article
  9. Article
  10. Review
  11. Review
  12. Relevance and challenges of exposome studies for environmental health research.Environmental health : a global access science source · 2026
    Review
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
  18. Organic Pollutants and Risk of Type 2 Diabetes: A Systematic Review and Meta-analysis.Mayo Clinic proceedings. Innovations, quality & outcomes · 2026
    Article
  19. Article
  20. Article

232 more citing papers are in PubMed but not listed here.

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

3 authors at 1 institution in 1 country.

Chirag J PatelDepartment of Pediatrics and Medicine, Stanford University School of Medicine, Stanford, California, USA.
Jayanta Bhattacharya
Atul J Butte
Stanford University · US

Funding

POSTDOCTORAL TRAINING IN MEDICAL INFORMATION SCIENCEST15LM007033 · NLM · STANFORD UNIVERSITY · PI SYLVIA KATINA PLEVRITIS · 1985 to 2026
$25.5M
Repositioning drugs for the treatment of small cell lung cancerR01GM079719 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN FRANCISCO · PI BUTTE, ATUL J · 2006 to 2015
$4.4M
Integrating Microarray and Proteomic Data by Ontology-based AnnotationR01LM009719 · NLM · STANFORD UNIVERSITY · PI BUTTE, ATUL J · 2008 to 2011
$1.1M
Health Insurance Provision for Vulnerable PopulationsK02AG024237 · NIA · STANFORD UNIVERSITY · PI BHATTACHARYA, JAY · 2006 to 2010
$556k
NIA NIH HHS K02 AG024237NIGMS NIH HHS R01 GM079719NLM NIH HHS R01 LM009719NLM NIH HHS T15 LM007033
6 · The paper itself

Abstract

backgroundType 2 Diabetes (T2D) and other chronic diseases are caused by a complex combination of many genetic and environmental factors. Few methods are available to comprehensively associate specific physical environmental factors with disease. We conducted a pilot Environmental-Wide Association Study (EWAS), in which epidemiological data are comprehensively and systematically interpreted in a manner analogous to a Genome Wide Association Study (GWAS). METHODS AND

findingsWe performed multiple cross-sectional analyses associating 266 unique environmental factors with clinical status for T2D defined by fasting blood sugar (FBG) concentration > or =126 mg/dL. We utilized available Centers for Disease Control (CDC) National Health and Nutrition Examination Survey (NHANES) cohorts from years 1999 to 2006. Within cohort sample numbers ranged from 503 to 3,318. Logistic regression models were adjusted for age, sex, body mass index (BMI), ethnicity, and an estimate of socioeconomic status (SES). As in GWAS, multiple comparisons were controlled and significant findings were validated with other cohorts. We discovered significant associations for the pesticide-derivative heptachlor epoxide (adjusted OR in three combined cohorts of 1.7 for a 1 SD change in exposure amount; p<0.001), and the vitamin gamma-tocopherol (adjusted OR 1.5; p<0.001). Higher concentrations of polychlorinated biphenyls (PCBs) such as PCB170 (adjusted OR 2.2; p<0.001) were also found. Protective factors associated with T2D included beta-carotenes (adjusted OR 0.6; p<0.001). CONCLUSIONS AND SIGNIFICANCE: Despite difficulty in ascertaining causality, the potential for novel factors of large effect associated with T2D justify the use of EWAS to create hypotheses regarding the broad contribution of the environment to disease. Even in this study based on prior collected epidemiological measures, environmental factors can be found with effect sizes comparable to the best loci yet found by GWAS.

Indexed as

EnvironmentCarotenoidsCohort StudiesDiabetes Mellitus, Type 2gamma-TocopherolGenetics, PopulationHealth SurveysHumansPesticidesPolychlorinated BiphenylsReproducibility of ResultsCarotenoidsgamma-TocopherolPesticidesPolychlorinated Biphenyls

Identifiers

PMID20505766
PMCPMC2873978
OpenAlexW2087591041

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.