Table 5.

Test of agreement for serial MICs determined by either E test or agar dilution

Antimicrobial agentMethodaIntraclass correlation coefficient (±95% confidence interval)
PenicillinET0.80 (0.75–0.84)
AD0.83 (0.79–0.87)
CefuroximeET0.89 (0.85–0.91)
AD0.85 (0.81–0.88)
CefotaximeET0.86 (0.81–0.89)
AD0.84 (0.80–0.88)
VancomycinET0.25 (0.15–0.35)
AD0.15 (0.05–0.24)
  • a ET, E test; AD, agar dilution.