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Table 5 Performance characteristics of algorithms with weak positives excluded

From: Evaluation of HIV testing algorithms in Ethiopia: the role of the tie-breaker algorithm and weakly reacting test lines in contributing to a high rate of false positive HIV diagnoses

Algorithm

(95% Confidence interval)

Sensitivity

Specificity

Positive predictive value

Negative predictive value

HIV prevalence

Serial KHB/STAT-PAK

100%

100%

100%

100%

7.59%

(98.2-100)

(98.4-100)

(98.2-100)

(98.4-100)

Tiebreaker

100%

100%

100%

100%

7.59%

KHB/STAT-PAK/Unigold

(98.2-100)

(98.3-100)

(98.2-100)

(98.3-100)

Serial KHB/Unigold

98.9%

100%

100%

99.9%

7.06%

(96.1-99.9)

(98.3-100)

(98.0-100)

(99.7-100)

Tiebreaker

100%

100%

100%

100%

7.06%

KHB/Unigold/STAT-PAK

(98.0-100)

(98.3-100)

(98.0-100)

(98.3-100)