Table 2.

Phylogenetic groups associated with integron classes and the ESBL phenotype in MDR- and XDR-UPEC clinical strains.

Resistance Mechanisms	MDR-UPEC clinical strains				Total % (n = 82)	XDR-UPEC clinical strains				Total % (n = 21)
	Percentage in the phylogenetic groups					Percentage in the phylogenetic groups
	A% (n = 5)	B1% (n = 0)	B2% (n = 32)	D% (n = 45)		A% (n = 2)	B1% (n = 0)	B2% (n = 10)	D% (n = 9)
intl1	40 (2)	0 (0)	43.75 (14)	44.43 (20)	43.90 (36)	100 (2)	0 (0)	30 (3)	55.56 (5)	47.61 (10)
intl2	0 (0)	0 (0)	3.12 (1)	2.22 (1)	2.43 (2)	50 (1)	0 (0)	10 (1)	0 (0)	9.52 (2)
intl3	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)	0 (0)
ESBLs	20 (1)	0 (0)	28.12 (9)	11.12 (5)	18.29 (15)	100 (2)	0 (0)	80 (8)	66.67 (6)	76.19 (16)

Class 1 integrase (intl1), class 2 integrase (intl2), class 3 integrase (intl3), and extended-spectrum beta-lactamases (ESBLs).