Table 4

Numbers of patients with positive transthoracic echocardiography according to the number of risk factors present*

Number of risk factors presentNumber of patients in each groupProportion with positive TTE
*Vasculitic/embolic phenomena, the presence of central venous access, a recent history of injected drug use, presence of a prosthetic valve, and positive blood cultures.
0239 (48%)0
1192 (38%)6 (14%)
249 (10%)17 (40%)
3–520 (4%)20 (46%)