Table 3.

Distribution of bla-CTX-M, TEM, and SHV genes among ESβL isolates

ESβL (n = 100)	Escherichia coli (n = 66), N (%)	Klebsiella spp. (n = 34), N (%)	P- value	Hospital-acquired (n = 48), N (%)	Community- acquired (n = 52), N (%)	P-value
CTX-M	64 (97)	34 (100)	0.547	47 (97.9)	51 (98.1)	1.00
SHV	3 (4.5)	7 (20.6)	0.029	8 (16.7)	2 (3.8)	0.045
TEM	2 (3)	0 (0)	0.547	1 (2.1)	1 (1.9)	1.00

CTX = cefotaxime; ESβL = extended-spectrum β-lactamase. There was no significant difference in the distribution of CTX-M and TEM genes among E. coli and Klebsiella spp. nor hospital- and community-acquired ESβL isolates. SHV gene was significantly higher among Klebsiella spp. (P-value = 0.029) and hospital-acquired ESβL isolates (P-value = 0.045).