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Table 5 Agreement between RDT result on blood versus serum in fresh and stored samples

From: A comparative evaluation of the performance of commercially available rapid immunochromatographic tests for the diagnosis of visceral leishmaniasis in Bangladesh

Blood vs Seruma Agreement index (Cohen’s kappa) with 95 % CI
Fresh Stored
Kalazar Detect 100 95.2 (88.39–100)
Signal®KA 97.6 (92.7–100) 100
Crystal®KA 100 100
Onsite leishmania Ab (Rev A) 97.7 (93.2–100) -
Onsite leishmania Ab (Rev B) 69 (54–84) -
  1. aWe didn’t perform RDT on stored blood for Rev A and Rev B following manufacturer’s instruction to avoid performing test on stored blood sample. That is why some kappa values are missing