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Table 1 Performance of Tubex® using group 1 as true positives and two different control groups as true negatives

From: Assessment and comparative analysis of a rapid diagnostic test (Tubex®) for the diagnosis of typhoid fever among hospitalized children in rural Tanzania

  Control Group
  Group 2 + 3* Group 3*
Sensitivity (95% CI) 0.79 (0.52-0.81) 0.79 (0.62-0.90)
(absolute numbers) (26/33) (26/33)
Specificity (95% CI) 0.89 (0.81-0.94) 0.97 (0.85-0.99)
(absolute numbers) (94/106) (94/97)
  1. *Group 1 = S. Typhi (n = 33), Group 2 = all non-yphi Salmonella (n = 49), Group 3 = all blood culture-positive non-Salmonella cases (n = 57)