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Distribution of gender and blood donation number in Rh-negative and Rh-Del donors (N = 202).
| Rh-negative | Rh-Del | ||
|---|---|---|---|
| n = 167 | n = 35 | ||
| Gender | Male | 103 (61.7%) | 26 (74.3%) |
| Female | 64 (38.3%) | 9 (25.7%) | |
|
| |||
| History of blood donation (number of blood donation) | 1 | 77 (46.1%) | 18 (51.4%) |
| 2 | 36 (21.6%) | 4 (11.4%) | |
| 3 | 13 (7.8%) | 5 (14.3%) | |
| 4 | 12 (7.2%) | 3 (8.6%) | |
| 5 | 6 (3.6%) | 1 (2.9%) | |
| 6 | 5 (3.0%) | 1 (2.9%) | |
| 7 | 4 (2.4%) | 0 | |
| 8 | 4 (2.4%) | 0 | |
| 9 | 1 (0.6%) | 2 (5.7%) | |
| 10 | 5 (3.0%) | 1 (2.9%) | |
| 11–13 | 4 (2.4%) | 0 | |
