Table 4.
Complications and outcomes of SAB patients.
| n | Monomicrobial SAB (n = 541) | Polymicrobial SAB (n = 31) | p Value | |
|---|---|---|---|---|
| Complication | ||||
| Complicated Bacteremia | 571 | 207 (38.3%) | 9 (29.0%) | 0.299 1 |
| Infective Endocarditis | 569 | 39 (7.2%) | 2 (6.5%) | 0.867 1 |
| Vertebral Osteomyelitis | 571 | 30 (5.6%) | 1 (3.2%) | 0.578 1 |
| Non-vertebral Osteomyelitis | 571 | 40 (7.4%) | 4 (12.9%) | 0.264 1 |
| Septic Arthritis | 570 | 47 (8.7%) | 1 (3.2%) | 0.284 1 |
| Psoas Abscess | 571 | 4 (0.7%) | 0 (0.0%) | 1.000 2 |
| Splenic Abscess | 571 | 3 (0.6%) | 0 (0.0%) | 1.000 2 |
| Renal Abscess | 571 | 2 (0.4%) | 0 (0.0%) | 1.000 2 |
| Deep Seated Abscess | 571 | 49 (9.1%) | 0 (0.0%) | 0.079 1 |
| Pneumonitis | 571 | 30 (5.6%) | 0 (0.0%) | 0.178 1 |
| Cerebral Abscess | 571 | 5 (0.9%) | 0 (0.0%) | 1.000 2 |
| Meningitis | 571 | 2 (0.4%) | 0 (0.0%) | 1.000 2 |
| Stroke | 571 | 4 (0.7%) | 1 (3.2%) | 0.244 2 |
| Septic Emboli | 571 | 16 (3.0%) | 2 (6.5%) | 0.255 2 |
| Epidural Abscess | 571 | 9 (1.7%) | 0 (0.0%) | 1.000 2 |
| Altered Mental Status | 571 | 11 (2.0%) | 0 (0.0%) | 1.000 2 |
| Outcome | ||||
| In-hospital Mortality | 559 | 59 (11.2%) | 6 (19.4%) | 0.167 1 |
| Hospital Length of Stay, days | 559 | 10 (6–19) | 12 (7–37) | 0.254 3 |
| 6-month Mortality | 572 | 144 (26.7%) | 14 (45.2%) | 0.018 4 |
| 6-month Reinfection | 572 | 7 (1.3%) | 0 (0.0%) | 0.524 3 |
Binary outcome variables are reported as frequency (percentage); time-to-event outcomes are presented with cumulative incidence or quartile estimates based on the cumulative incidence function accounting for the competing risk of death. n is the number of non-missing values for each outcome. p values are by 1 Pearson χ2 test, 2 Fisher exact test, 3 Gray test, or 4 Cox (unadjusted) regression analysis. Abbreviation: SAB, S. aureus bacteremia.