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Table 5 Accuracy indices of the RDTs (HRP-2 and pLDH) bands compared with PCR to detect P. falciparum

From: Performance of four HRP-2/pLDH combination rapid diagnostic tests and field microscopy as screening tests for malaria in pregnancy in Indonesia: a cross-sectional study

 

Carestart

First Response

Parascreen

SD Bioline

PCR as reference test

TP, FP

12, 16

16, 14

14, 18

14, 16

FN, TN

27, 879

23, 881

25, 887

25, 879

Sensitivity (95 % CI)

30.7 (17.5–47.7)

41.0 (25.9–57.8)

35.8 (21.6–52.8)

35.8 (21.6–52.8)

Specificity (95 % CI)

98.2 (97.0–98.9)

98.4 (97.3–99.1)

97.9 (96.7–98.7)

98.2 (97.0–98.9)

PPV (95 % CI)

42.8 (25.0–62.5)

53.3 (34.6–71.2)

43.7 (26.8–62.1)

46.6 (28.7–65.3)

NPV (95 % CI)

97.0 (95.6–97.9)

97.4 (96.1–98.3)

97.2 (95.8–98.1)

97.2 (95.8–98.1)

LR positive (95 % CI)

17.2 (8.7–33.8)

26.2 (13.8–49.8)

17.8 (9.6–33.1)

20.1 (10.6–38.1)

LR negative (95 % CI)

0.7 (0.44–1.28)

0.59 (0.46–0.78)

0.65 (0.52–0.83)

0.65 (0.52–0.82)

DOR (95 % CI)

24.5 (9.7–61.2)

44.4 (17.8–108.9)

27.3 (11.3–65.6)

30.9 (12.5–75.5)

  1. TP true positive, FP false positive, FN false negative, TN true negative, CI confidence interval, PPV positive predictive value, NPV negative predictive value, LR likelihood ratio, DOR diagnostic odds ratio; include positives for mixed species