Table 3. Multivariate analysis of the association between the variables studied and prevalence of hepatitis B virus. Goiânia, Midwestern Brazil.

Variable	Adjusted odds ratio*	95%CI
Age (years)	1.13	1.08–1.19
Previous blood transfusion	3.16	1.15–8.69
Cocaine use	4.54	2.01–10.28
Single	3.80	1.69–8.54
Ignoring burning pain during urination as a symptom of STI	2.57	1.14–5.78
Ignoring genital ulcers/sores as a symptom of STI	3.47	1.58–7.58

STI: sexually transmitted infection

* Adjusted by age, education, being single, age of first sexual intercourse, meeting clients on the streets, no suggestion of condom use by both persons, obtaining male condom exclusively in the workplace, cocaine use, previous blood transfusion, ignoring symptoms of sexually transmitted infections.