Table 3.
The Impact of COVID-19 on the Structure of Blood Donors
| Group | 2019 | 2020 | 2021 | |
|---|---|---|---|---|
| Gender | Male | 58,035 (63.02%) | 59,092 (63.49%) | 63,456 (63.83%) |
| Female | 34,060 (36.98%) | 33,980 (36.51%) | 35,955 (36.17%) | |
| χ2 | 4.478 | – | 2.421 | |
| P value | 0.034 | – | 0.120 | |
| OR 95% CI |
0.980 (0.961–0.998) | 1.015 (0.996–1.034) | ||
| Region | Locals | 22,759 (24.73%) | 26,967 (28.97%) | 26,163 (26.32%) |
| Foreigners | 69,262 (75.27%) | 66,110 (71.03%) | 73,248 (73.68%) | |
| χ2 | 423.477 | – | 169.537 | |
| P value | <0.001 | – | <0.0.001 | |
| OR 95% CI |
0.806 (0.789–0.822) | 0.876 (0.858–0.893) | ||
| Education background | Lower | 47,924 (52.04%) | 43,447 (46.84%) | 47,026 (47.30%) |
| Higher | 44,160 (47.96%) | 49,304 (53.16%) | 52,385 (52.70%) | |
| χ2 | 500.075 | – | 4.111 | |
| P value | <0.001 | – | 0.043 | |
| OR 95% CI |
1.232 (1.209–1.254) | 1.019 (1.001–1.037) | ||
| Donor status | First-time | 78,802 (85.57%) | 43,012 (46.21%) | 49,724 (50.02%) |
| Repeat | 13,293 (14.43%) | 50,065 (53.79%) | 49,687 (49.98%) | |
| χ2 | 31,852.996 | – | 279.106 | |
| P value | <0.001 | – | <0.001 | |
| OR 95% CI |
6.900 (6.747–7.057) | 1.165 (1.144–1.186) | ||
| Age | 18–29 | 36,741 (39.89%) | 36,381 (39.10%) | 41,775 (42.02%) |
| 30–65 | 55,354 (60.11%) | 56,660 (60.90%) | 57,636 (57.98%) | |
| χ2 | 12.166 | – | 169.950 | |
| P value | <0.001 | – | <0.001 | |
| OR 95% CI |
1.034 (1.015–1.053) | 1.129 (1.108–1.150) | ||