Table 4 Logistic regression predicting HBV and HCV positive status
From: Demographic characteristics of transfusion-transmitted infections among blood donors in China
Demographic factors | HBV | HCV | ||||||
|---|---|---|---|---|---|---|---|---|
Bivariate analysis | Multivariable analysis | Bivariate analysis | Multivariable analysis | |||||
OR (95% CI) | p-value | aOR (95% CI) | p-value | OR (95% CI) | p-value | aOR (95% CI) | p-value | |
Age | ||||||||
>55 (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
18–25 | 3.279 (0.286–37.613) | 0.340 | 2.989 (0.257–34.717) | 0.381 | 4.096 (0.405–41.425) | 0.232 | 4.455 (0.438–45.266) | 0.207 |
26–35 | 3.735 (2.182–6.393) | <0.001 | 3.500 (2.093–5.855) | <0.001 | 3.650 (1.936–6.881) | <0.001 | 3.818 (2.061–7.072) | <0.001 |
36–45 | 2.719 (1.660–4.453) | <0.001 | 2.638 (1.647–4.227) | <0.001 | 2.362 (1.321–4.222) | 0.004 | 2.564 (1.465–4.486) | 0.001 |
46–55 | 1.877 (1.202–2.931) | 0.006 | 1.868 (1.232–2.834) | 0.003 | 1.224 (0.713–2.102) | 0.464 | 1.302 (0.777–2.180) | 0.316 |
Gender | ||||||||
Female (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Male | 1.126 (0.832–1.525) | 0.442 | 1.126 (0.836–1.517) | 0.433 | 1.135 (0.776–1.660) | 0.513 | 1.131 (0.777–1.647) | 0.521 |
Previous donation history | ||||||||
First-time donor (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Repeat donor | 0.057 (0.029–0.113) | <0.001 | 0.057 (0.029–0.133) | <0.001 | 0.162 (0.088–0.300) | <0.001 | 0.159 (0.087–0.294) | <0.001 |
Ethnicity | ||||||||
Han (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Minority | 0.892 (0.453–1.755) | 0.741 | 0.961 (0.493–1.873) | 0.907 | 1.336 (0.617–2.891) | 0.463 | 1.338 (0.624–2.869) | 0.455 |
Marital status | ||||||||
Unmarried (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Married | 0.945 (0.660–1.354) | 0.758 | 0.933 (0.670–1.299) | 0.681 | 0.551 (0.351–0.866) | 0.010 | 0.515 (0.338–0.785) | 0.002 |
Occupation | ||||||||
Others (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Teacher/civil servant/medical worker | 0.276 (0.082–0.934) | 0.039 | 0.276 (0.082–0.932) | 0.038 | 0.348 (0.081–1.493) | 0.155 | 0.343 (0.080–1.471) | 0.150 |
Farmer | 1.720 (0.976–3.032) | 0.061 | 1.748 (0.993–3.078) | 0.053 | 1.388 (0.672–2.867) | 0.375 | 1.377 (0.672–2.824) | 0.382 |
Student | 1.793 (1.037–3.098) | 0.036 | 1.634 (0.966–2.764) | 0.067 | 0.835 (0.405–1.723) | 0.626 | 0.869 (0.430–1.756) | 0.695 |
Worker | 1.375 (0.934–2.025) | 0.106 | 1.417 (0.965–2.080) | 0.075 | 1.042 (0.639–1.698) | 0.870 | 1.030 (0.633–1.674) | 0.906 |
Company employee | 1.677 (1.101–2.555) | 0.016 | 1.743 (1.150–2.640) | 0.009 | 1.021 (0.587–1.775) | 0.942 | 1.012 (0.586–1.750) | 0.965 |
Education | ||||||||
Secondary School or below (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Masters/Bachelor degree | 0.727 (0.481–1.098) | 0.129 | 0.705 (0.487–1.023) | 0.066 | 0.717 (0.428–1.201) | 0.206 | 0.645 (0.402–1.035) | 0.069 |
Associate degree | 0.988 (0.668–1.462) | 0.952 | 1.004 (0.689–1.464) | 0.983 | 0.989 (0.606–1.615) | 0.966 | 0.931 (0.577–1.502) | 0.769 |