TABLE 3

Comparison of MIC50 and MIC90 values for various antibiotics between U. parvum and U. urealyticum

AntibioticTotal no. of Ureaplasma drug-resistant samplesU. parvum (μg/ml)U. urealyticum (μg/ml)P valuea
MIC50MIC90MIC50MIC90
Tetracycline30.250.50.52<0.001
Ciprofloxacin21224<0.001
Erythromycin01224<0.003
Azithromycin00.250.250.250.25NS
Chloramphenicol02424NS
Gentamicin130326464128<0.01
  • a The P value represents a Student t test comparison of the individual MIC values for all U. parvum isolates compared to the MIC values for all U. urealyticum isolates. NS, not significant.