Table 4.
Correlation between in vitro antimicrobial susceptibilities of bloodstream isolates to third-generation cephalosporins and combination agents.
| Bacteria | Ciprofloxacin | Gentamicin | ||
|---|---|---|---|---|
| κ (95% CI) | p | κ (95% CI) | p | |
| Enterobacteriaceae | 0.27 (0.19, 0.34) | <0.001 | 0.45 (0.35, 0.56) | <0.001 |
| E. coli, Klebsiella spp. and P. mirabilis | 0.30 (0.22, 0.38) | <0.001 | 0.52 (0.41, 0.63) | <0.001 |
| Enterobacter, Serratia and Citrobacter spp. | -0.07 (-0.10, 0.04) | 0.38 | -0.06 (-0.09, 0.03) | 0.47 |
| Non-fermenting Gram-negative bacilli | 0.17 (-0.05, 0.38) | 0.08 | 0.09 (-0.12, 0.29) | 0.35 |
| P. aeruginosa | -0.10 (-0.16, 0.05) | 0.39 | -0.04 (-0.09, 0.01) | 0.66 |
| Other non-fermenters | 0.21 (-0.09, 0.51) | 0.17 | -0.12 (-0.43, 0.19) | 0.45 |
κ: Kappa coefficient; CI: confidence intervals.