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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]
Parascreen™ 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.