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Table 4 Performance of gametocyte-specific RT-PCR markers against field samples from Uganda

From: Multiplex, DNase-free one-step reverse transcription PCR for Plasmodium 18S rRNA and spliced gametocyte-specific mRNAs

Gametocytes/mL

n

pfs25

PF3D7_0630000

PF3D7_0816800

Sensitivity (95% CI)

 1–100 (n = 20)

20

100% (83.2–100.0%)

95.0% (75.1–99.9%)

40.0% (19.1–64.0%)

 101–1000 (n = 13)

13

100% (75.3–100.0%)

100.0% (75.3–100.0%)

61.5% (31.6–86.1%)

 >1000 (n = 14)

14

100% (76.8–100.0%)

100.0% (76.8–100.0%)

100.0% (76.8–100.0%)

 All samples (n = 74)

74

100% (92.5–100.0%)

97.9% (88.7–100.0%)

63.8% (48.5–77.3%)

Specificity (95% CI)

 All samples (=74)

74

100% (87.2–100.0%)

85.2% (66.3–95.8%)

100.0% (87.2–100.0%)

  1. Sensitivity = true positive/(true positive + false negative)
  2. Specificity = true negative/(true negative + false positive)
  3. Gametocytes/mL quantities were based on pfs25 standard curve