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. 2013 May-Jun;29(3):768–772. doi: 10.12669/pjms.293.3576

Table-I.

Comparison of two ESBL detection methods (n= 214).

Test No. of positive isolates (%)
Double disc synergy test* 145 67.8
CLSI confirmatory test* (combined disc) 213 99.5

* The accuracy of the DDST test is significantly lower than that of CLSI test (p<0.0001, McNewmar’s test).