Table 2.

Phylogenetic groups of ESBL-producing E. coli isolates

Phylogenetic group	Total	CTX-M producers	No CTX-M producers	CTX-M-15 producers
Total number	163 (%)	118	45	101
A	54 (33.1)	34	20	26
B1	24 (14.7)	12	12	10
B2	61 (37.4)	55 †	6	52 √
D	24 (14.7)	17	7	13

†: p < 0.0005 for CTX-M B2 producers vs no CTX-M B2 producers.

√: p < 0.0005 for CTX-M-15 B2 producers vs no CTX-M-15 B2 producers.