Table 5 Logistic regression predicting HIV and Syphilis positive status
From: Demographic characteristics of transfusion-transmitted infections among blood donors in China
Demographic factors | HIV | Syphilis (TP) | ||||||
|---|---|---|---|---|---|---|---|---|
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 | 2.680 (0.284–25.336) | 0.390 | 1.625 (0.176–14.989) | 0.668 | 3.843 (0.648–22.804) | 0.138 | 3.879 (0.645–23.334) | 0.139 |
26–35 | 0.853 (0.311–2.341) | 0.757 | 0.749 (0.281–1.999) | 0.564 | 3.714 (2.174–6.344) | <0.001 | 3.784 (2.245–6.377) | <0.001 |
36–45 | 1.044 (0.504–2.165) | 0.907 | 0.870 (0.429–1.763) | 0.698 | 4.479 (2.798–7.171) | <0.001 | 4.576 (2.905–7.208) | <0.001 |
46–55 | 1.329 (0.774–2.280) | 0.302 | 1.316 (0.791–2.187) | 0.290 | 2.647 (1.721–4.072) | <0.001 | 2.652 (1.757–4.002) | <0.001 |
Gender | ||||||||
Female (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Male | 9.652 (3.863–24.115) | <0.001 | 10.393 (4.193–25.762) | <0.001 | 0.532 (0.406–0.697) | <0.001 | 0.565 (0.434–0.736) | <0.001 |
Previous donation history | ||||||||
First-time donor (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Repeat donor | 1.056 (0.677–1.646) | 0.811 | 1.149 (0.749–1.762) | 0.525 | 0.309 (0.219–0.437) | <0.001 | 0.306 (0.216–0.432) | <0.001 |
Ethnicity | ||||||||
Han (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Minority | 1.146 (0.421–3.116) | 0.790 | 0.906 (0.342–2.401) | 0.843 | 2.406 (1.421–4.072) | 0.001 | 2.309 (1.378–3.868) | 0.001 |
Marital status | ||||||||
Unmarried (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Married | 0.528 (0.315–0.884) | 0.015 | 0.499 (0.300–0.830) | 0.007 | 0.623 (0.443–0.876) | 0.006 | 0.764 (0.554–1.053) | 0.100 |
Occupation | ||||||||
Others (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Teacher/civil servant/medical worker | 0.598 (0.135–2.641) | 0.497 | 0.608 (0.139–2.661) | 0.509 | 0.357 (0.135–0.941) | 0.037 | 0.362 (0.138–0.950) | 0.039 |
Farmer | 0.653 (0.148–2.888) | 0.575 | 0.635 (0.145–2.788) | 0.547 | 0.793 (0.436–1.443) | 0.448 | 0.838 (0.462–1.521) | 0.562 |
Student | 2.587 (1.203–5.567) | 0.015 | 1.878 (0.909–3.882) | 0.089 | 0.653 (0.351–1.214) | 0.178 | 0.532 (0.293–0.968) | 0.039 |
Worker | 2.598 (1.539–4.374) | <0.001 | 2.718 (1.624–4.550) | <0.001 | 0.795 (0.540–1.170) | 0.245 | 0.831 (0.568–1.216) | 0.340 |
Company employee | 2.325 (1.301–4.155) | 0.004 | 2.535 (1.439–4.465) | 0.001 | 0.788 (0.513–1.210) | 0.275 | 0.799 (0.522–1.221) | 0.299 |
Education | ||||||||
Secondary School or below (Reference) | 1 | – | 1 | – | 1 | – | 1 | – |
Masters/Bachelor degree | 0.657 (0.350–1.232) | 0.190 | 0.667 (0.381–1.169) | 0.157 | 0.596 (0.398–0.892) | 0.012 | 0.520 (0.358–0.756) | 0.001 |
Associate degree | 1.884 (1.168–3.037) | 0.009 | 1.977 (1.245–3.139) | 0.004 | 0.738 (0.506–1.077) | 0.115 | 0.723 (0.499–1.047) | 0.086 |