Table 1.
Characteristics of blood donors donated blood during September to December 2019 in Wuhan.
| Total (n = 76,844) | Involved blood donors (n = 32,484) | |
|---|---|---|
| No. of donations | 88,517 | 43,850 |
| Whole blood | 68,456 | 23,799 |
| Platelet | 20,061 | 20,051 |
| Sex (%) | ||
| Male | 47,621 (62.0) | 17,250 (53.1) |
| Female | 29,223 (38.0) | 15,234 (46.9) |
| Age (%) | ||
| Median (IQR, year) | 21 (19–29) | 20 (19–31) |
| 18–25 | 53,318 (69.4) | 22,557 (69.4) |
| 26–35 | 12,777 (16.6) | 5010 (15.4) |
| 36–45 | 7,007 (9.1) | 3,093 (9.5) |
| 46–55 | 3,569 (4.6) | 1,715 (5.3) |
| >55 | 173 (0.2) | 109 (0.3) |
| ABO blood type (%) | ||
| A | 24,816 (32.3) | 10,481 (32.3) |
| B | 18,692 (24.3) | 7,998 (24.6) |
| O | 26,352 (34.3) | 10,913 (33.6) |
| AB | 6,984 (9.1) | 3,092 (9.5) |
| Ethnicity (%) | ||
| Han | 70,397 (91.6) | 29,787 (91.7) |
| Non-Han | 5,449 (7.1) | 2,349 (7.2) |
| Missing data | 998 (1.3) | 348 (1.1) |
| Occupation (%) | ||
| Student | 44,803 (58.3) | 19,540 (60.2) |
| Freelancer | 8,836 (11.5) | 3,520 (10.8) |
| Office worker | 6,757 (8.8) | 3,009 (9.3) |
| Worker | 3,848 (5.0) | 1,427 (4.4) |
| Business and service personnel | 2,589 (3.4) | 1,059 (3.3) |
| Civil worker/teacher/healthcare worker | 1,645 (2.1) | 693 (2.1) |
| Farmer | 995 (1.3) | 312 (1.0) |
| Military personnel | 654 (0.9) | 213 (0.7) |
| Others | 5,212 (6.8) | 1,986 (6.1) |
| Missing data | 1,505 (2.0) | 725 (2.2) |
| Education level (%) | ||
| Master/doctorate | 1,884 (2.5) | 769 (2.4) |
| Bachelor | 35,040 (45.6) | 15,272 (47.0) |
| College | 21,335 (27.8) | 8,963 (27.6) |
| High school | 10,896 (14.2) | 4,185 (12.9) |
| Lower than high school | 5,065 (6.6) | 2,066 (6.4) |
| Others | 385 (0.5) | 208 (0.6) |
| Missing data | 2,239 (2.9) | 1,021 (3.1) |