TABLE 5.

Evaluation of Western blot interpretation criteria for B. henselae endocarditisa

Criterion(s) (bands required)B. henselae infectionbBartonella sp. endocarditisc
Sensitivity (%)Specificity (%)Sensitivity (%)Specificity (%)PPV (%)
No. of B. henselae bands ≥ no. of B. quintana band(s) + 241.7100.041.7100.0100.0
≥2 of Bh65, Bh45, and/or Bh35100.0100.0100.010.826.7
  • a Recommended criteria are in boldface.

  • b Sensitivity and specificity of the various criteria were determined for all sera tested from patients with B. henselae infection (n = 22).

  • c Sensitivity, specificity, and PPV of the various criteria were determined for all sera tested from patients with Bartonella endocarditis (n = 49).