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Table 2 Correlation between ESBL confirmatory results and PCR results

From: Detection of a CTX-M group 2 beta-lactamase gene in a Klebsiella pneumoniae isolate from a tertiary care hospital, Trinidad and Tobago

PCR result

Phenotypic confirmatory testing result

(Not-confirmed isolates)

Phenotypic confirmatory testing result

(Confirmed isolates)

Negative (9)

% Total

Positive (57)

% Total

Negative

 blaTEM

8

88.8

18

31.6

 blaSHV

1

11.1

1

1.7

 blaCTX-M1

8

88.9

17

29.8

 blaCTX-M2

9

100

56

98.2

 blaAmpC

9

100

57

100

Positive

 blaTEM

1

11.1

39

68.4

 blaSHV

8

88.9

56

98.2

 blaCTX-M1

1

11.1

40

70.2

 blaCTX-M2

0

0

1

1.7

 blaAmpC

0

100

0

100