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Table 2 Estimates of the diagnostic specificity (Sp) and sensitivity (Se) of the field IMS-LFD and laboratory-based IMS-qPCR and IMS-culture tests for M. bovis in faeces from 100 live captured badgers and 30 live captive badgers relative to live diagnostic test results, obtained using McNemar’s test (95% confidence intervals are indicated in parentheses)

From: Development of a novel immunochromatographic lateral flow assay specific for Mycobacterium bovis cells and its application in combination with immunomagnetic separation to test badger faeces

Test result Putative TB infected Putative Non-infected Total Diagnostic sensitivity, Se Diagnostic specificity, Sp
IMS-LFD + 5 5 10 0.081 0.926
IMS-LFD - 57 63 120 (0.027–0.178) (0.837–0.976)
  62 68 130   
IMS-qPCR + 36 20 56 0.581 0.706
IMS-qPCR - 26 48 74 (0.449–0.705) (0.583–0.811)
  62 68 130   
IMS-culture + 27 14 41 0.436 0.794
IMS-culture - 35 54 89 (0.310–0.567) (0.678–0.882)
  62 68 130