Polygenic Score (PGS) ID: PGS002418

Predicted Trait
Reported Trait Red blood cell distribution width
Mapped Trait(s) Red cell distribution width (EFO_0009188)
Additional Trait Information Red Blood Cell Dist. Width
Released in PGS Catalog: June 9, 2022
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Score Details

Score Construction
PGS Name blood_RBC_DISTRIB_WIDTH.P+T.0.0001
Development Method
Name Pruning and Thresholding (P+T)
Parameters p < 0.0001
Variants
Original Genome Build GRCh37
Number of Variants 16,996
Effect Weight Type beta
PGS Source
PGS Catalog Publication (PGP) ID PGP000332
Citation (link to publication) Weissbrod O et al. Nat Genet (2022)
Ancestry Distribution
Source of Variant
Associations (GWAS)
European: 100%
325,395 individuals (100%)
PGS Evaluation
African: 25%
East Asian: 25%
European: 25%
South Asian: 25%
4 Sample Sets

Development Samples

Source of Variant Associations (GWAS)
Study Identifiers Sample Numbers Sample Ancestry Cohort(s)
— 325,395 individuals European UKB

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) 		PGS Sample Set ID
(PSS) 		Performance Source Trait PGS Effect Sizes
(per SD change) 		Classification Metrics Other Metrics Covariates Included in the Model PGS Performance:
Other Relevant Information
PPM013399 PSS009827|
African Ancestry|
5,990 individuals
 PGP000332 |
Weissbrod O et al. Nat Genet (2022)
 Reported Trait: Red Blood Cell Distribution Width — — Incremental R2 (full model vs. covariates alone): 0.0 age, sex, age*sex, assessment center, genotyping array, 10 PCs —
PPM013448 PSS009828|
East Asian Ancestry|
888 individuals
 PGP000332 |
Weissbrod O et al. Nat Genet (2022)
 Reported Trait: Red Blood Cell Distribution Width — — Incremental R2 (full model vs. covariates alone): 0.0576 age, sex, age*sex, assessment center, genotyping array, 10 PCs —
PPM013497 PSS009829|
European Ancestry|
41,837 individuals
 PGP000332 |
Weissbrod O et al. Nat Genet (2022)
 Reported Trait: Red Blood Cell Distribution Width — — Incremental R2 (full model vs. covariates alone): 0.0994 age, sex, age*sex, assessment center, genotyping array, 10 PCs —
PPM013546 PSS009830|
South Asian Ancestry|
7,623 individuals
 PGP000332 |
Weissbrod O et al. Nat Genet (2022)
 Reported Trait: Red Blood Cell Distribution Width — — Incremental R2 (full model vs. covariates alone): 0.0649 age, sex, age*sex, assessment center, genotyping array, 10 PCs —

Evaluated Samples

PGS Sample Set ID
(PSS) 		Phenotype Definitions and Methods Participant Follow-up Time Sample Numbers Age of Study Participants Sample Ancestry Additional Ancestry Description Cohort(s) Additional Sample/Cohort Information
PSS009828 — — 888 individuals — East Asian — UKB —
PSS009829 — — 41,837 individuals — European Non-British European UKB —
PSS009830 — — 7,623 individuals — South Asian — UKB —
PSS009827 — — 5,990 individuals — African unspecified — UKB —