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Table 3 Incidence of microorganisms associated with catheter-related bloodstream infections detected by semi-quantitative and quantitative culture

From: Diagnostic accuracy of semi-quantitative and quantitative culture techniques for the diagnosis of catheter-related infections in newborns and molecular typing of isolated microorganisms

  Semi-quantitative culture Quantitative culture
Microorganism ≥ 15 CFU < 15 CFU ≥ 1,000 CFU < 1,000 CFU
S. epidermidis (n = 19) 14 5* 10 9**
S. haemolyticus (n = 3) 3 0 3 0
S. aureus (n = 1) 1 0 1 0
Klebsiella pneumoniae (n = 2) 2 0 2 0
Yeast (n = 3) 2 1 1 2*
E. coli (n = 1) 1 0 1 0
Total (n = 29) 23 6 18 11
  1. *One culture without growth; **Three cultures without growth.