| Phenotype | Age of diagnosis was defined using age at earliest exam when moderate-to-severe COPD (modified Global Initiative for Chronic Obstructive Lung Disease (GOLD) grade 2–4 using pre-bronchodilator spirometry) was observed. We defined COPD occurring early in life as age at diagnosis <50 year |
| Sample Ancestry | African American or Afro-Caribbean (African American) |
| Total number | 2,464 individuals |
| Detailed numbers |
57.6% Male samples
|
| Number of Cohort(s) | 1 |
| Cohort Short Name | Cohort Full Name | Previous/other/additional names (e.g. sub-cohorts) |
|---|---|---|
| COPDGene | Chronic Obstructive Pulmonary Disease Gene Study | — |