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Table 2 Sensitivity, specificity, accuracy, positive likelihood ratio and negative likelihood ratio of the four studied methods. The combination of ELISA and PCR was used as reference method

From: Rapid on-site diagnosis of canine giardiosis: time versus performance

Method Accuracy (%) Sn (%) Sp (%) LR+ LR−
SpeedTM Giardia 92.0 86.2 100.0 Infinity 0.1
Microscopy 76.0 58.6 100.0 Infinity 0.4
ELISA 93.0 100.0 83.3 6.0 0.00
PCR 86.0 100.0 66.7 3.0 0.00
  1. Abbreviations: Sn, sensitivity; Sp, specificity; LR+, positive likelihood ratio; LR−, negative likelihood ratio