### Lookup a phenotype

You can search for phenotypes by:

• Description, e.g. “height”
• ICD code, e.g. “I25”
• ID, i.e. the UK Biobank phenotype ID matching the UKBB showcase

Results shown here include:

• N: The sample size in the UKBB analysis set (more info on the GWAS analysis here)
• Prevalence (Prev.) for binary phenotypes
• Intercept (Int.): the intercept term from partitioned LD score regression. Values > 1 may indicate population stratification, confounding, or some other model misspecification. P-value (Int. p) corresponds to the test that the intercept is greater than 1.
• Heritability ($$h^2$$): the SNP heritability estimate from partitioned LD score regression. Value is given on the liability scale for binary phenotypes, assuming that the population prevalence matches the prevalence in the UK Biobank analysis set. P-value (h2 p) corresponds to the test that the intercept is greater than 1.

Click on a phenotype for more detailed results from the partitioned LD score regression analysis.