Table 2. Distribution of Ceftriaxone Minimum Inhibitory Concentrations (MICs) Among Neisseria gonorrhoeae Isolates, Gonococcal Isolate Surveillance Project (GISP), 2011–2015

Minimum Inhibitory Concentrations (µg/ml)

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Year 

≤0.008

n (%)

0.015

n (%)

0.030

n (%)

0.060

n (%)

0.125

n (%)

0.250

n (%)

0.500

n (%)

Total

n

2011

4161

830

289

166

20

1

0

5467

 

(76.1)

(15.2)

(5.3)

(3.0)

(0.4)

(0.0)

(0.0)

2012

4241

779

331

129

14

0

1

5495

 

(77.2)

(14.2)

(6.0)

(2.4)

(0.3)

(0.0)

(0.0)

2013

4491

880

463

108

3

0

0

5945

 

(75.5)

(14.8)

(7.8)

(1.8)

(0.1)

(0.0)

(0.0)

2014

3650

839

437

160

5

2

0

5093

 

(71.7)

(16.5)

(8.6)

(3.1)

(0.1)

(0.0)

(0.0)

2015

3694

901

373

165

13

1

0

5147

 

(71.8)

(17.5)

(7.2)

(3.2)

(0.2)

(0.0)

(0.0)

 

Note: Percentages represent row percentages.

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