Table 3.
Cefazolin Resistance of all Microorganisms Reported in the PADIT Trial
| Microorganism | Resistance to Cefazolin | P Valuea | ||
|---|---|---|---|---|
| Both Arms, n/N (%) | Conventional, n/N (%) | Incremental, n/N (%) | ||
| Staphylococcus aureus | 7/72 (9.7) | 3/35 (8.6) | 4/37 (10.8) | - |
| Coagulase-negative Staphylococcus | 23/64 (35.9) | 11/41 (26.8) | 12/23 (52.2) | .05 |
| Other gram-positive microorganisms | 4/14 (28.6) | 0/5 (0) | 4/9 (44.4) | - |
| Other microorganisms | 9/12 (75.0) | 5/5 (100) | 4/7 (57.1) | - |
| Total | 43/162 (26.5) | 19/86 (22.1) | 24/76 (31.6) | .24 |
Abbreviation: PADIT, Prevention of Arrhythmia Device Infection Trial.
P values were calculated for the variables with at least 10 cases using a logistic mixed model to account for underlying correlation among microorganisms detected in the same patient.