Table 1.

Prevalence and relative sensitivity and specificity rates of the PCR-ELISA laboratorial and commercial platforms, taking Kato-Katz technique (12 slides) as reference for schistosomiasis mansoni diagnosis

Assays	Prevalence rate (CI 95%)	Relative sensitivity (CI 95%)	Relative specificity (CI 95%)
PCR-ELISA laboratorial platform (500 mg feces)	52/206 (25.2%) (19.5–31.8)	37/38 (97.4%) (86.5–99.5)	153/168 (91.1%) (85.8–94.5)
PCR-ELISA commercial platform (500 mg feces)	62/206 (30.1%) (23.9–36.9)	37/38 (97.4%) (86.5–99.5)	143/168 (85.1%) (79–89.7)

Difference between prevalence rates of the PCR-ELISA laboratorial and commercial platforms, p = 0.13

Difference between relative specificity rates of the PCR-ELISA laboratorial and commercial platforms, p = 0.03