Table 2.

Microbiological findings

Overall (n = 637)IHD (n = 392)CRRT (n = 245)Pa
Catheter-tip colonization
    n (%)162 (25.4)114 (29.1)48 (19.6)<0.009b
Incidence per 1000 catheter-days38.942.727.7<0.02c
Microorganism characteristics (n)
Gram positive927319<0.005
    Staphylococcus epidermidis715714<0.02
    Staphylococcus aureus10640.49
    Enterococcus spp.6600.19
    Other541>0.99
Gram negative4529160.41
    Escherichia coli1183>0.99
    Proteusspp.5320.64
    Pseudomonas aeruginosa13760.21
    Enterobacter spp.8530.70
    Other862>0.99
    Fungi16511<0.0008
    Polymicrobial972>0.99
CRBSI
    n (%)8 (1.3)6 (1.5)2 (0.8)>0.99b
CRBSI per 1000 catheter-days1.92.61.20.43c
Microorganism characteristics (n)
    Staphylococcus epidermidis431>0.99
    Staphylococcus aureus431>0.99
  • CRBSI, catheter-related bloodstream infection.

  • a Comparing IHD versus CRRT in case of catheter-tip colonization, otherwise specified.

  • b Comparing IHD versus CRRT by Fisher exact test.

  • c Comparing IHD versus CRRT by Poisson regression.