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Table 4 Comparison of RDT and microscopy performance using PCR as golden standard in the 442 samples where PCR results were available

From: Reliability of rapid diagnostic tests in diagnosing pregnancy-associated malaria in north-eastern Tanzania

Diagnostic category

No. of samples

Sensitivity (%)

Specificity (%)

PPV (%)

NPV (%)

% [95% CI]

% [95% CI]

% [95% CI]

% [95% CI]

Parascreenâ„¢

301

100.[89.9–100.0]

93.3 [89.6 -95.7]

65.4 [51.8-76.9]

100[98.5- 100.0]

Paracheck Pf®

64

100 [8 0.6-100]

93.8 [83.2 – 97.9]

84.2 [62.4-94.5]

100 [92.1-100.0]

ParaHIT®f

77

100 [79.6–100.0]

91.9 [82.5– 96.5]

75.0 [53.1 – 88.8]

91.9 [84.9-95.8]

Microscopy

442

70.8 [58.0 –81.1]

93.1[89.9-95.4]

63.9 [51.2-74.6]

94.5 [92.0–96.8]

  1. PPV: positive predictive value; NPV: negative predictive value; 95% CI: 95% confidence interval.