Table 1 Comparison of oxacillin MICs by Agar dilution, Easy MIC Test and MTT based method along with errors and agreement with the reference method.

From: Colorimetric method for rapid detection of Oxacillin resistance in Staphylococcus aureus and its comparison with PCR for mec A gene

No. of strains with similar readings. (Total-126)

Easy MIC Test* (μg/ml)

Agar dilution Method (μg/ml)

MTT based Method (μg/ml)

Errors

Percent agreement

Minor

Major

21

4

4

4

00

00

100

29

6

6

6

00

00

100

03

4

6

4

00

00

100

16

8

8

10

>2(0.25)

00

95.83

31

12

12

12

00

00

100

07

12

16

14

>2(0.25)

00

95.83

12

16

12

14

>2(0.25)

00

95.83

03

6

6

4

>2(0.25)

00

95.83

04

6

4

6

00

00

100

    

1.85%

00%

98.14%

  1. *Reference method.