Figure 2From: High specificity of line-immunoassay based algorithms for recent HIV-1 infection independent of viral subtype and stage of disease Univariate logistic regression analysis of factors that promote or impair algorithm specificity in all 714 patients. The meaning of the colors is explained at the bottom of the figure. Numbers indicate the chi-square p-value of the respective variable analyzed. HIV-1 RNA was used as a dichotomized parameter (<50 or ≥50 copies/mL).Back to article page