Table 2. Causal microorganisms.
| Causal microorganism | n | % | Healthcare associated | Community acquired | Intravenous drug abusers | P |
|---|---|---|---|---|---|---|
| Staphylococcus aureus | 42 | 25 | 9 | 28 | 5 | <0.01 |
| Coagulase-negative staphylococcus | 34 | 22 | 20 | 13 | 1 | 0.06 |
| Streptococcus viridans | 26 | 15 | 4 | 22 | <0.01 | |
| Enterococcus/str group D | 24 | 14 | 6 | 18 | <0.01 | |
| Enterobacteriaceae/gram- | 13 | 6.5 | 5 | 7 | 1 | |
| Polymicrobial | 5 | 2.4 | 3 | 2 | ||
| Corynebacterium | 3 | 1.8 | 2 | 1 | ||
| HACEK | 2 | 1.2 | 1 | 1 | ||
| Anaerobic | 2 | 1.2 | 0 | 2 | ||
| Culture negative | 19 | 11 | 8 | 11 |
The results of the univariate analysis between the two groups of healthcare-associated and community-acquired infective endocarditis are shown.