Table 5.
Combinations of clinical features and predicted probabilities of CIED infection (N=128)
| Device Type | >1 Device- related Procedure |
SAB ≥4 days |
Risk Score | # SAB cases |
# Infected cases |
Predicted Probability |
|---|---|---|---|---|---|---|
| ICD | No | No | 0 | 29 | 1 | 0.07 |
| ICD | No | Yes | 5 | 21 | 7 | 0.29 |
| ICD | Yes | No | 3.5 | 7 | 2 | 0.20 |
| ICD | Yes | Yes | 8.5 | 6 | 3 | 0.58 |
| PPM | No | No | 4 | 23 | 5 | 0.23 |
| PPM | No | Yes | 9 | 27 | 17 | 0.62 |
| PPM | Yes | No | 7.5 | 7 | 4 | 0.49 |
| PPM | Yes | Yes | 12.5 | 8 | 6 | 0.84 |
Abbreviations: CIED = cardiovascular implantable electronic device, ICD = implantable cardioverter-defibrillator, PPM = permanent pacemaker, SAB: S. aureus bacteremia, # SAB cases = patients in current study with combination of features listed, # Infected Cases = number of patients with CIED infection in our cohort, PP = predicted probability of CIED infection from multivariable model.
Risk Scores: We assigned 4 points for PPM device, 3.5 points assigned for >1 device-related procedure, 5 points assigned for duration of SAB ≥4 days, and 0 otherwise