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Table 5 MIC concordance and variation from the modal MIC in the European gonococcal External Quality Assessments (EQAs), 2007–2016 (no EQA in 2013)

From: Ten years of external quality assessment (EQA) of Neisseria gonorrhoeae antimicrobial susceptibility testing in Europe elucidate high reliability of data

   Azithromycin Cefiximea Ceftriaxone Ciprofloxacin Gentamicina Spectinomycin Total
No. % No. % No. % No. % No. % No. % No. %
2007–2011 Within 1 MIC log2 dilutionb 1284 90 301 94 1331 84 1502 94 233 99 1038 91 5690 90
Within 2 MIC log2 dilutions 123 99 13 98 172 95 80 99 2 100 76 98 466 98
> 2 MIC log2 dilutions 19 1 6 2 76 5 24 1 0 0 26 2 151 2
Total no. of isolates with MIC data 1426 320 1579 1606 235 1140 6307
2012–2016 Within 1 MIC log2 dilutionb 701 88 757 93 728 88 728 90 482 93 660 92 4056 91
Within 2 MIC log2 dilutions 65 96 33 97 77 97 45 96 30 99 45 98 295 97
> 2 MIC log2 dilutions 28 4 22 3 27 3 36 4 4 1 11 2 128 3
Total no. of isolates with MIC data 794 812 832 809 516 716 4479
All years Within 1 MIC log2 dilutionb 1985 89 1058 93 2059 85 2230 92 715 95 1698 91 9745 90
Within 2 MIC log2 dilutions 188 98 46 98 249 96 125 98 32 99 121 98 761 97
> 2 MIC log2 dilutions 47 2 28 2 103 4 60 2 4 1 37 2 279 3
Total no. of isolates with MIC data 2220 1132 2411 2415 751 1856 10,785
  1. aCefixime and gentamicin were not included in the 2007–2009 External Quality Assessment distributions
  2. bEssential agreement