Table 1. Comparison of features between GWAS Central and related resources.

Resource feature	GWAS Central	GWAS Catalog	OADGAR	SNPedia
Relationships between SNPs and disease	●	●	●	●
Includes P-values <1.0 × 10−5	●	●	●	●
Includes P-values between 0.001 and 1.0 × 10−5	●		●
Includes P-values >0.001	●
Interactive graphical visualization of SNPs	●	●
Phenotypes searchable using multiple ontologies	●
Web service access	●			●
Upload and comparison of user's data	●
Website documentation on how users can submit data	●			●
Unrestricted download	Full study or 1K P-valuesa	All data	All data	All data
Number of studiesb	1605	1688	118	Not stated
Number of P-valuesb	67 723 637	13 839	56 411	Not stated

Abbreviations: GWAS, genome-wide association study; OADGAR, Open Access Database of Genome-wide Association Results; SNP, single-nucleotide polymorphism.

^aA full study or 1000 P-values from multiple studies are available for unrestricted download. All data are available with agreement.

^bAs of September 2013.