Data download

 

Download all meta-data Download all results

 

NB: These files are tab-delimited text files that are linked by the column "StudyID". Information on the variables in each file is below.

 

Full summary statistics uploaded to Zenodo can be downloaded from here: EWAS Catalog Zenodo datasets

Meta-data variables

This meta-data file has the following pieces of information:

  • Author - the first author of the publication (surname then initials).
  • Consortium - the name of the or cohorts used.
  • PMID - the PubMed ID of the publication.
  • Date - the date the paper was published (YY-MM-DD).
  • Trait - the name of the trait.
  • EFO - the corresponding ontology term(s) for the trait.
  • Analysis - description of the analysis performed.
  • Source - the table where the result can be found in the paper.
  • Outcome - the outcome of the analysis.
  • Exposure - the exposure of the analysis.
  • Covariates - the covariates adjusted for in the analysis.
  • Outcome_Units - the units of the outcome.
  • Exposure_Units - the units of the exposure.
  • Methylation_Array - the array used to measure the methylation.
  • Tissue - the tissue in which the methylation was measured.
  • Further_Details - any further details on the analysis.
  • N - the total number of participants used in the analysis.
  • N_Cohorts - the total number of cohorts used in the analysis.
  • Age - the age group participants belonged to.
  • Sex - sex of individuals used in the analysis.
  • Ethnicity - ethnicity of the individuals used in the analysis.
  • StudyID - ID that can be used to link the meta-data to the results.

Results variables

The results file has the following pieces of information:

  • CpG - the CpG site.
  • Location - the location of the CpG based on hg19 coordinates.
  • Chr - the chromosome where the CpG is located based on hg19 coordinates.
  • Pos - the position where the CpG is located based on hg19 coordinates.
  • Gene - the gene where the CpG is mapped to based on the Ilumina manifest.
  • Type - the type of genomic location the CpG is in (e.g. CpG island).
  • Beta - the effect estimate.
  • SE - the standard error of beta.
  • P - p-value.
  • Details - any additional details on the analysis (e.g. sub-trait).
  • StudyID - ID that can be used to link the meta-data to the results.

NB: Missing information is left blank or as NA.