TABLE I.
Demographics of the NHANES 1999–2002
| NHANES 1999–2002 | ||
|---|---|---|
| Total | Individuals with elevated iron measures |
|
| Unweighted N | 8,779 | 101 |
| Population estimate | 186,389,488 | 1,928,202 |
| Age (year) (%) | ||
| 20–44 | 51.2 | 26.6 |
| 45–64 | 32.3 | 42.3 |
| ≥65 | 16.5 | 31.2 |
| Gender (%) | ||
| Male | 48.1 | 78.7 |
| Female | 51.9 | 21.3 |
| Race/Ethnicity (%) | ||
| Non-Hispanic White | 72.3 | 69.9 |
| Non-Hispanic Black | 10.3 | 7.8 |
| Hispanic | 13.8 | 17.8 |
| Other race | 3.5 | 4.5 |
| Arthritis (%) | ||
| Yes | 21.4 | 31.1 |
| No | 78.6 | 68.9 |
| Liver condition (%) | ||
| Yes | 3.0 | 11.1 |
| No | 97.0 | 88.9 |
| Joint pain (%) | ||
| Yes | 44.2 | 50.6 |
| No | 55.8 | 49.4 |
| Osteoporosis (%) | ||
| Yes | 4.4 | 9.7 |
| No | 95.6 | 90.3 |
| Diabetes (%) | ||
| Yes | 6.4 | 12.3 |
| No | 93.6 | 87.7 |
| Congestive heart failure (%) | ||
| Yes | 2.1 | 1.8 |
| No | 97.9 | 98.2 |
| Thyroid disease (%) | ||
| Yes | 7.5 | 15.9 |
| No | 92.5 | 84.1 |