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Table 2 Autoscope diagnostic performance vs. PCR

From: Automated microscopy for routine malaria diagnosis: a field comparison on Giemsa-stained blood films in Peru

 

n slides (pos, neg)

Diagnostic performance % (95% CI)

Sensitivity

Specificity

PPV

NPV

Accuracy

San Juan

 All species

300 (123, 177)

72 (64–80)

85 (79–90)

77 (68–84)

82 (75–87)

80 (75–84)

 P. vivax

300 (102, 198)

72 (62–80)

83 (77–88)

69 (59–77)

85 (79–90)

79 (74–83)

 P. falciparum

300 (21, 279)

33 (15–57)

99 (97–100)

78 (40–97)

95 (92–97)

95 (91–97)

Santa Clara

 All speciesa

400 (151, 249)

52 (44–60)

70 (64–76)

52 (43–59)

71 (65–76)

64 (58–68)

 P. vivax

400 (100, 300)

60 (50–70)

71 (66–76)

41 (33–49)

84 (79–89)

69 (64–73)

 P. falciparum

400 (52, 348)

4 (0–13)

99 (98–100)

50 (7–93)

87 (84–90)

87 (83–90)

  1. Results for autoscope on all slides, separated by clinic
  2. aOnly one mixed species sample was detected