Volume 17, Number 3—March 2011
Synopsis
Q Fever in France, 1985–2009
Diane Frankel, Hervé Richet, Aurélie Renvoisé, and Didier Raoult
Table 2
PPV of Q fever phase I IgG titers for patients with endocarditis, France, 2009*
| Characteristic | Titers |
|||
|---|---|---|---|---|
| >800 | >1,600 | >3,200 | >6,400 | |
| No. with definite endocarditis | 41 | 32 | 24 | 17 |
| No. with possible endocarditis | 11 | 9 | 3 | 1 |
| Total | 141 | 88 | 47 | 24 |
| PPV, % (definite or possible endocarditis) | 37 | 59 | 57 | 75 |
*PPV, positive predictive value; phase I, virulent bacteria; Ig, immunoglobulin.
