Table 2.

Multivariable logistic regression to identify variables independently associated with HTLV-1 seropositivity in 605 maintenance hemodialysis patients from four satellite clinics in Salvador, Bahia, Brazil

Independent variables	POR	95% CI		p
		Lower	Upper
Age, years	1.04	1.01	1.08	0.041
Unmarried (vs. married)	3.65	1.13	11.75	0.030
Blood transfusion (vs. no)	3.35	1.01	11.13	0.048

Nine variables were selected to enter the automated, forward stepwise multivariable logistic regression model based on a p value ≤ 0.25 on univariate analyses: age (continuous), gender (female as reference), marital status (unmarried as reference), time on dialysis, history of blood transfusion (yes/no), seropositivity for hepatitis B or C virus (yes/no), socioeconomic status (“poor or very poor” as reference), level of schooling (“less than high school” as reference), and diabetes (yes / no). History of blood transfusion was limited to available data that reported transfusion only for the previous three months