Table 3 Logistic regression predicting TTIs positive status
From: Demographic characteristics of transfusion-transmitted infections among blood donors in China
Demographic factors | TTIs | |||
|---|---|---|---|---|
Bivariate analysis | Multivariable analysis | |||
OR (95% CI) | p-value | aOR (95% CI) | p-value | |
Age | ||||
>55 (Reference) | 1 | – | 1 | – |
18–25 | 2.690 (0.724–10.000) | 0.140 | 2.616 (0.705–9.713) | 0.151 |
26–35 | 2.874 (1.982–4.167) | <0.001 | 2.799 (1.948–4.023) | <0.001 |
36–45 | 2.611 (1.879–3.627) | <0.001 | 2.562 (1.862–3.525) | <0.001 |
46–55 | 1.802 (1.351–2.404) | <0.001 | 1.813 (1.376–2.389) | <0.001 |
Gender | ||||
Female (Reference) | 1 | – | 1 | – |
Male | 0.994 (0.810–1.219) | 0.951 | 1.041 (0.852–1.271) | 0.697 |
Previous donation history | ||||
First-time donor (Reference) | 1 | – | 1 | – |
Repeat donor | 0.260 (0.203–0.334) | <0.001 | 0.261 (0.204–0.334) | <0.001 |
Ethnicity | ||||
Han (Reference) | 1 | – | 1 | – |
Minority | 1.480 (0.963–2.273) | 0.074 | 1.489 (0.974–2.276) | 0.066 |
Marital status | ||||
Unmarried (Reference) | 1 | – | 1 | – |
Married | 0.681 (0.533–0.870) | 0.002 | 0.720 (0.573–0.904) | 0.005 |
Occupation | ||||
Others (Reference) | 1 | – | 1 | – |
Teacher/civil servant/medical worker | 0.350 (0.179–0.684) | 0.002 | 0.355 (0.181–0.694) | 0.002 |
Farmer | 1.176 (0.761–1.817) | 0.465 | 1.191 (0.772–1.838) | 0.430 |
Student | 1.119 (0.769–1.628) | 0.556 | 1.000 (0.695–1.438) | 1.000 |
Worker | 1.187 (0.908–1.552) | 0.209 | 1.227 (0.940–1.601) | 0.133 |
Company employee | 1.208 (0.901–1.620) | 0.206 | 1.256 (0.940–1.678) | 0.123 |
Education | ||||
Secondary School or below (Reference) | 1 | – | 1 | – |
Masters/Bachelor degree | 0.643 (0.488–0.848) | 0.002 | 0.602 (0.467–0.775) | <0.001 |
Associate degree | 1.007 (0.776–1.307 | 0.957 | 0.992 (0.770–1.277) | 0.947 |