Polygenic Score (PGS) ID: PGS000017

Predicted Trait
Reported Trait Inflammatory bowel disease
Mapped Trait(s) inflammatory bowel disease (EFO_0003767)
Released in PGS: Oct. 14, 2019

Score Details

Score Construction
PGS Name GPS_IBD
Variants
Original Genome Build hg19
Number of Variants 6,907,112
Development Method
Name LDPred
Parameters ρ = 0.1; LD panel = 503 1000G Europeans
PGS Source
PGS Catalog Publication (PGP) ID PGP000006
Citation (link to publication) Khera AV et al. Nat Genet (2018)

Contributing Samples

Source of Variant Associations (GWAS)
Study Identifiers Sample Numbers Sample Ancestry
GWAS Catalog: GCST003043
EuropePMC: 26192919
34,652 individuals European
Score Development/Training
Detailed Phenotype Description Participant Follow-up Time Sample Numbers Age of Study Participants Sample Ancestry Additional Ancestry Description Cohort(s) Additional Sample/Cohort Information
Inflammatory bowel disease ascertainment was based on report in an interview with a trained nurse, or an ICD-9 code of 555.X or ICD-10 code of K51.X in hospitalization records.
[
  • 1,360 cases
  • , 121,640 controls
]
European UKB UKB Phase 1

Performance Metrics

Disclaimer: The performance metrics are displayed as reported by the source studies. It is important to note that metrics are not necessarily comparable with each other. For example, metrics depend on the sample characteristics (described by the PGS Catalog Sample Set [PSS] ID), phenotyping, and statistical modelling. Please refer to the source publication for additional guidance on performance.

PGS Performance Metric ID
(PPM ID)
PGS Sample Set ID
(PSS ID)
Performance Source Trait PGS Effect Sizes
(per SD change)
PGS Classification Metrics Other Metrics Covariates Included in the Model PGS Performance: Other Relevant Information
PPM000026 PSS000016 PGP000006
Khera AV et al. (2018)
Reported Trait: Inflammatory bowel disease AUROC: 0.63[0.62, 0.64] Nagelkerke’s R2 (estimate of variance explained by the PGS after covariate adjustment): 0.021 age; sex; Ancestry PC 1-4; genotyping chip

Evaluated Samples

PGS Sample Set ID
(PSS ID)
Detailed Phenotype Description Participant Follow-up Time Sample Numbers Age of Study Participants Sample Ancestry Additional Ancestry Description Cohort(s) Additional Sample/Cohort Information
PSS000016 Inflammatory bowel disease ascertainment was based on report in an interview with a trained nurse, or an ICD-9 code of 555.X or ICD-10 code of K51.X in hospitalization records.
[
  • 5,853 cases
  • , 294,831 controls
]
European UKB UKB Phase 2