Table I.
Demographic and other characteristics of Baseline Retrovirus Epidemiology Donor Study-II (REDS-II) donor Iron Status Evaluation (RISE) donors (n=2,425)
| N (%) | |
|---|---|
| Race/Ethnicity | |
| Asian | 76 (3.1) |
| Black | 116 (4.8) |
| Hispanic | 76 (3.1) |
| White | 2,111 (87.1) |
| Other | 29 (1.2) |
| Missing | 17 (0.7) |
| Gender | |
| Female | 1,250 (51.6) |
| Male | 1,175 (48.4) |
| Age (years) | |
| 16 – 29 | 476 (19.6) |
| 30 – 39 | 340 (14.0) |
| 40 – 49 | 497 (20.5) |
| 50 – 59 | 626 (25.8) |
| 60+ | 486 (20.0) |
| HFE genotype | |
| Wild Type | 1,568 (64.7%) |
| Heterozygous H63D | 573 (23.6% |
| Heterozygous C282Y | 194 (8.0%) |
| Homozygous H63D | 39 (1.6%) |
| Homozygous C282Y | 7 (0.3%) |
| Double Mutation | 41 (1.7%) |
| Missing | 3 (0.1%) |
| Donor Status | |
| First-Time/Reactivated | 888 (36.6) |
| Frequent/Repeat | 1,537 (63.4) |
| Weight (kg) | |
| < 68 | 595 (24.5) |
| 68 – 78 | 623 (25.7) |
| 79 – 90 | 531 (21.9) |
| ≥ 91 | 659 (27.2) |
| Missing | 17 (0.7) |
| Smoking | |
| Current smoker | 313 (12.9) |
| Past/Non/Unknown | 2,112 (87.1) |
| Iron Supplementation | |
| Iron Supplement | 954 (39.3) |
| No iron Supplement | 1,471 (60.7) |
| Menstrual Cycle (females) | |
| Periods have stopped | 585 (46.8) |
| Still having periods | 665 (53.2) |
| Pregnancy Status (females) | |
| Ever Pregnant | 831 (66.5) |
| Unknown pregnancy status | 13 (1.0) |
| Never pregnant | 406 (32.5) |
| TF G277S Genotype | |
| Wild Type | 2,107 (86.9) |
| Hetero- or Homozygous | 254 (10.5) |
| Missing | 64 (2.6) |
| Red Cell donations in previous 2 years | |
| First-Time/Reactivated Donors | 888 (36.6) |
| ≤ 3 donations | 317 (13.1) |
| 4–9 donations | 1,011 (41.7) |
| 10+ donations | 209 (8.6) |
| Blood Centre | |
| A | 436 (18.0) |
| B | 390 (16.1) |
| C | 376 (15.5) |
| D | 392 (16.2) |
| E | 415 (17.1) |
| F | 416 (17.2) |