Number of positive GM tests in 42 episodes monitored before and after initiation of treatment with intravenous β-lactam antibiotics according to the delay after initiation of treatment

Time of testNo. of samples testedNo. (%) of samples with positive GM indexa
Pretreatment425 (12)
Day 161 (17)
Day 2129 (75)
Day 32018 (90)
Overall4242 (100)b
  • a A GM index of ≥0.5 was considered positive.

  • b P < 0.0001 as compared to before treatment.