Exclusions from the total sample of Caucasian and African Americans at least 20 y of age
| Exclusion . | African American . | Caucasian . | ||
|---|---|---|---|---|
| Men . | Women . | Men . | Women . | |
| Total sample | 4121 | 4635 | 4921 | 5586 |
| Excluded for | ||||
| Age younger than 20 y | 2002 | 2045 | 1634 | 1752 |
| Pregnant | 0 | 90 | 0 | 70 |
| Transferrin saturation not measured | 183 | 208 | 119 | 180 |
| Abnormal hemoglobin level* | 230 | 610 | 347 | 272 |
| Abnormal hematocrit† | 0 | 52 | 48 | 68 |
| Protoporphyrin greater than or equal to 70 μg/dL red blood cells | 41 | 148 | 121 | 358 |
| MCV less than 80 fL | 127 | 96 | 50 | 55 |
| Serum alanine aminotransferase greater than 80 | 15 | 15 | 11 | 20 |
| Serum aspartate aminotransferase greater than 74 U/L | 18 | 9 | 7 | 4 |
| Serum γ-glutamyl transferase greater than 102 | 71 | 82 | 64 | 90 |
| Serum total bilirubin greater than 2.0 mg/dL | 6 | 2 | 23 | 4 |
| Serum lactate dehydrogenase greater than 546 | 0 | 0 | 1 | 1 |
| Serum C-reactive protein greater than 1.0 mg/dL | 69 | 163 | 124 | 207 |
| Serum hepatitis B surface antigen positive or borderline | 17 | 6 | 5 | 4 |
| Serum hepatitis C antibody positive | 41 | 20 | 39 | 18 |
| Subtotal | 1301 | 1089 | 2328 | 2483 |
| Possible heterozygosity for hemochromatosis (non-Hispanic blacks only) | 43 | 36 | 0 | 0 |
| Sample for transferrin saturation modeling | 1258 | 1053 | 2328 | 2483 |
| Serum ferritin not measured | 6 | 6 | 6 | 8 |
| Sample for serum ferritin analysis | 1252 | 1047 | 2322 | 2475 |
| Exclusion . | African American . | Caucasian . | ||
|---|---|---|---|---|
| Men . | Women . | Men . | Women . | |
| Total sample | 4121 | 4635 | 4921 | 5586 |
| Excluded for | ||||
| Age younger than 20 y | 2002 | 2045 | 1634 | 1752 |
| Pregnant | 0 | 90 | 0 | 70 |
| Transferrin saturation not measured | 183 | 208 | 119 | 180 |
| Abnormal hemoglobin level* | 230 | 610 | 347 | 272 |
| Abnormal hematocrit† | 0 | 52 | 48 | 68 |
| Protoporphyrin greater than or equal to 70 μg/dL red blood cells | 41 | 148 | 121 | 358 |
| MCV less than 80 fL | 127 | 96 | 50 | 55 |
| Serum alanine aminotransferase greater than 80 | 15 | 15 | 11 | 20 |
| Serum aspartate aminotransferase greater than 74 U/L | 18 | 9 | 7 | 4 |
| Serum γ-glutamyl transferase greater than 102 | 71 | 82 | 64 | 90 |
| Serum total bilirubin greater than 2.0 mg/dL | 6 | 2 | 23 | 4 |
| Serum lactate dehydrogenase greater than 546 | 0 | 0 | 1 | 1 |
| Serum C-reactive protein greater than 1.0 mg/dL | 69 | 163 | 124 | 207 |
| Serum hepatitis B surface antigen positive or borderline | 17 | 6 | 5 | 4 |
| Serum hepatitis C antibody positive | 41 | 20 | 39 | 18 |
| Subtotal | 1301 | 1089 | 2328 | 2483 |
| Possible heterozygosity for hemochromatosis (non-Hispanic blacks only) | 43 | 36 | 0 | 0 |
| Sample for transferrin saturation modeling | 1258 | 1053 | 2328 | 2483 |
| Serum ferritin not measured | 6 | 6 | 6 | 8 |
| Sample for serum ferritin analysis | 1252 | 1047 | 2322 | 2475 |
Hemoglobin (Hb) level exclusions: African American men, Hb less than 13 g/dL; African American women, Hb less than 11.5 g/dL; Caucasian men, Hb less than 13.5 g/dL; Caucasian women, Hb less than 12 g/dL.
Hematocrit (Hct) exclusions: African American men, Hct less than 34%; African American women, Hct less than 30%; Caucasian men, Hct less than 40%; Caucasian women, Hct less than 36%.