Table 3.
Bacteria | Cefazolin | Cefazolin and vancomycinb |
---|---|---|
No infection | 493 | 1313 |
Infection | ||
MRSAc | 4 | 1 |
MSSA | 3 | 6 |
CNS | 0 | 4 |
Streptococcus varieties | 0 | 2 |
Others | 3d | 6e |
SSI = surgical site infection; MRSA = methicillin resistant Staphylococcus aureus; MSSA = methicillin-sensitive Staphylococcus aureus; CNS = coagulative negative Staphylococcus
aThere were seven SSI in the cefazolin group. Multiple organisms grew in multiple sites.
bThere were 15 SSI in the cefazolin and vancomycin group. Multiple organisms grew in multiple sites.
cOdds ratio 95% CI, 29.0 (4.0, 593.3); numbers needed to treat 95% CI, 138.0 (101.5, 2828.2).
dOne each of E coli, Klebsiella, B fragilis.
eOne each of Diptheria, E aerogenes, Enterococcus, Pseudomonas, Acinectobacer, Proteus.