TABLE 1.

Model variable values and sensitivity ranges

Model variableProbabilitySensitivity range
LowHigh
Contamination ratea0.730.500.95
Risk factors for CoNS
    infection0.6760.650.707
S. aureus prevalenceb0.1240.100.23
TCT24
    True negative0.9850.9670.999
    True positive111
PNA-FISH
    True negative0.9980.9951
    True positive0.9080.4220.958
RT-PCR
    True negative10.9761
    True positive0.9400.2051
TCT4
    True negative0.9790.950.998
    True positive111
  • a When CoNS is identified in a blood culture.

  • b When one of two blood cultures is positive for Gram-positive cocci in clusters.