| Characteristics | Number | Percentage |
| Total | 1586 | 100 |
Gender | Male | 972 | 61.3 |
| Female | 614 | 38.7 |
Age groups in years | 16 - 30 | 1124 | 70.9 |
| 31 - 45 | 305 | 19.2 |
| 46 - 59 | 126 | 8.0 |
| >60 | 30 | 1.9 |
| Not recorded | 1 | 0.06 |
NBSZ branch | Harare | 685 | 43.2 |
| Bulawayo | 293 | 18.5 |
| Gweru | 222 | 14.0 |
| Masvingo | 201 | 13.6 |
| Mutare | 185 | 12.7 |
Marital status (n = 1071) | Married | 284 | 17.9 |
| Not married | 787 | 49.6 |
| Not recorded | 515 | 32.5 |
Occupation (n = 1091) | Students | 783 | 49.4 |
| Professionals | 245 | 15.4 |
| Others | 63 | 4.0 |
| Not recorded | 495 | 31.2 |
Donor Status | First time | 232 | 14.6 |
| Repeat | 1354 | 85.4 |