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Table 4 SIR agreement rate of Neisseria gonorrhoeae isolates by CDS/CLSI disc diffusion against MIC by Etest (All 100 isolates were sensitive to ceftriaxone and spectinomycin by all three methods therefore are not shown in this table)

From: Antimicrobial susceptibility testing of Neisseria gonorrhoeae isolates in Pakistan by Etest compared to Calibrated Dichotomous Sensitivity and Clinical Laboratory Standards Institute disc diffusion techniques

  Category Etest Complete agreement
      Concordant results Discordant Results
   S I R   
CDS
Penicillin G S 06 04 00 60 40
  I 02 11 00   
  R 00 34 43   
Ciprofloxacin S 00 00 00 90 10
  I 00 12 08   
  R 00 02 78   
Azithromycin S 99 00 00 100 00
  I 00 00 00   
  R 00 00 01   
CLSI
Penicillin G S 04 00 00 75 25
  I 04 29 01   
  R 00 20 42   
Ciprofloxacin S 00 00 00 86 14
  I 00 02 02   
  R 00 12 84   
Tetracycline S 01 02 00 62 37
  I 10 20 10   
  R 01 15 41   
Azithromycina S 99 00 00 100 00
  I 00 00 00   
  R 00 00 01   
  1. SIR: Sensitive, intermediate, resistant
  2. Tetracycline was tested with CLSI method only
  3. aBSAC break points were used for Azithromycin