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Table 2 Specificity and overall accuracy (rate of correct identification of true negatives and true positives) of the five 4th generation HIV assays

From: Serological diagnosis and prevalence of HIV-1 infection in Russian metropolitan areas

Test system

Specificity – all

Specificity - GP

Specificity – high risk

Specificity – potential interference

Accuracy

Abbott

99.85%

99.84%

99.48%

100%

99.85%

Bio-Rad

99.71%

99.89%

96.37%

99.50%

99.72%

Vector-Best

99.58%

99.93%

93.26%

99.00%

99.60%

DS

99.77%

99.77%

99.48%

99.83%

99.78%

MBU

99.89%

99.91%

99.48%

99.83%

99.87%

  1. GP general population. Bold figures indicate a significantly lower specificity, below the threshold recommended by WHO