Exclusions From the Total Sample of African Americans Aged 20 to 74 Years
| Exclusion . | No. . |
|---|---|
| Total sample | 1,275 |
| Excluded for | |
| Abnormal mean corpuscular volume | 188 |
| Abnormal erythrocyte protoporphyin concentration | 94 |
| Abnormal hemoglobin concentration | 141 |
| Abnormal hematocrit | 16 |
| Possible heterozygote for HLA-linked hemochromatosis | 28 |
| Final analytic sample | 808 |
| Exclusion . | No. . |
|---|---|
| Total sample | 1,275 |
| Excluded for | |
| Abnormal mean corpuscular volume | 188 |
| Abnormal erythrocyte protoporphyin concentration | 94 |
| Abnormal hemoglobin concentration | 141 |
| Abnormal hematocrit | 16 |
| Possible heterozygote for HLA-linked hemochromatosis | 28 |
| Final analytic sample | 808 |
The exclusions were applied sequentially, in the order shown.