Table 1. Socio-demographic characteristics blood donors at the Northern Zone Blood Transfusion Center, in Moshi, Tanzania (N = 101, 616).
| Variables | Frequency (n) | Percentage (%) |
|---|---|---|
| Year of donation | ||
| 2017 | 25568 | 25.2 |
| 2018 | 37952 | 37.3 |
| 2019 | 38096 | 37.5 |
| Age (years) | ||
| 18–25 | 45400 | 44.7 |
| 26–35 | 27263 | 26.8 |
| 36–45 | 18570 | 18.3 |
| 46–55 | 8543 | 8.4 |
| 56–65 | 1840 | 1.8 |
| Sex | ||
| Male | 85080 | 83.7 |
| Female | 16536 | 16.3 |
| Region of residence | ||
| Arusha | 26585 | 26.2 |
| Kilimanjaro | 33386 | 32.9 |
| Manyara | 14368 | 14.1 |
| Tanga | 26650 | 26.2 |
| Others | 627 | 0.6 |
| Type of blood donor | ||
| Replacement | 22034 | 21.7 |
| Voluntary non remunerated | 79582 | 78.3 |