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Table 2 Comparison between qPCR test and a combined microscopy technique in a subset of 48 participants

From: Prevalence and risk factors for intestinal parasitic infections in pregnant women residing in three districts of Bogotá, Colombia

 

Prevalence by combined microscopy technique % (n)

Prevalence by qPCR technique % (n)

Positive agreement %b 95% CI

Negative agreement %c 95%CI

B. hominis

27.0 (13)

52.0 (25)

48.0

30.0–66.5

95.7

79.0–99.2

G. lamblia

0.0 (0)

4.0(2)

0.0

0.0–0.0

95.8

90.2–100

Any parasitea

31.0 (15)

54.0 (26)

50.0

32.1–67.9

90.9

72.2–97.5

  1. n number of positive study participants diagnosed by each individual test
  2. % = percentage
  3. CI confidence interval
  4. a“Any parasite” means that, in the sample analyzed, at least one parasite has been identified, regardless of pathogenicity
  5. bPositive agreement percentage corresponds to the number of parasites detected by combined microscopy technique and confirmed by qPCR, over the total number of parasites detected by qPCR
  6. cNegative agreement percentage corresponds to the number of stool samples reported as negative for parasites by combined microscopy technique and confirmed by qPCR, over the total negative cases detected by qPCR