Location | Results | ||||||
---|---|---|---|---|---|---|---|

Blood culture | Predictive value for serological result | ||||||

No. of cats examined | Prevalence (P) (probability pretest) (%) | PPV (%) | Change in probability (PPV-P) (%) | Prevalence (1 − P) of Bartonella-free cats (pretest probability) (%) | NPV (%) | Change in probability NPV − (1 − P) (%) | |

Milan | 114 | 5.3 | 8.7 | 3.4 | 94.7 | 96.5 | 1.8 |

Brescia | 56 | 8.9 | 14.2 | 5.3 | 91.1 | 94.0 | 2.9 |

Pavia | 43 | 37.2 | 50.1 | 12.9 | 62.8 | 72.1 | 9.3 |

Lomellina | 178 | 14.1 | 21.8 | 7.7 | 85.9 | 90.3 | 4.4 |

Oltrepò Pavese | 292 | 15.7 | 24.0 | 8.3 | 84.3 | 89.2 | 4.9 |

Garda Lake environs | 86 | 48.3 | 61.3 | 13 | 51.7 | 62.1 | 10.4 |