Table I.
Demographic characteristics of the three study populations, showing the percentage of each population within each demographic category.
| RISE* 2008 (%) | NHANES 2005-2008 (%) | REDS-II# 2008 (%) | |
|---|---|---|---|
| Overall | N= 1,609 | N=10,254 | N=36,793 |
| Male | 48.7 | 48.1 | 41.4 |
| Female | 51.3 | 51.9 | 58.6 |
| Ages | |||
| 18-19 | 5.2 | 3.4 | 31.9 |
| 20-29 | 12.2 | 17.6 | 26.8 |
| 30-39 | 13.2 | 18.0 | 14.3 |
| 40-49 | 21.3 | 20.5 | 13.8 |
| 50-59 | 27.3 | 17.7 | 9.3 |
| 60-69 | 15.9 | 11.2 | 3.2 |
| 70+ | 4.9 | 11.6 | 0.7 |
| White | 94.7 | 70.9 | 84.6 |
| Black | 2.2 | 11.0 | 4.9 |
| Hispanic | 1.8 | 12.5 | 5.2 |
| Other | 1.3 | 5.7 | 5.2 |
| Blood Center | |||
| A | 26.4 | N/A | 18.1 |
| B | 24.3 | N/A | 13.1 |
| C | 25.2 | N/A | 16.0 |
| D | 24.1 | N/A | 52.8 |
Abbreviations: NHANES: National Health and Nutrition Examination Survey
*
First-time/Reactivated and Repeat Donors combined
#
0.2% of the race data for multicenter study is missing