Table 1: Distribution of ESBL-producing Gram-negative bacteria among hospital departments at King Abdullah Hospital, Bisha, Saudi Arabia.

Isolates (n)Total number (%) of ESBL producersGram-negative isolates per hospital department
ICUs (n =154), ESBL+ICUs (n = 154), ESBL+Medicine (n = 24), ESBL+Surgery (n = 23), ESBL+OBS and gyne (n = 22), ESBL+Pediatric (n = 10), ESBL+Respiratory (n = 8), ESBL+Urology (n = 7), ESBL+

K. pneumoniae (n = 85)35 (41.2)213351101
E. coli (n = 74)23 (31.1)85431101
Acinetobacter spp. (n = 49)11 (22.4)80021000
P. aeruginosa (n = 37)6 (16.2)30020010
Proteus mirabilis (n = 31)6 (19.4)32010000
Other Gram-negative rods (n = 12)1 (4.3)01000000
Enterobacter cloacae (n = 12)2 (16.7)20000000
Total (n = 311)84 (27)45 (29.2)11 (17.5)7 (29.2)13 (56.5)3 (13.6)2 (20)1 (12.5)2 (28.6)

ESBL = extended-spectrum β-lactamase; OBS and gyne = obstetrics and gynecology; ICUs = intensive care units. Morganella morganii (n = 5), Klebsiella oxytoca (n = 4), Serratia marcescens (n = 4), Providencia rettgeri (n = 4), Citrobacter freundii (n = 3), Salmonella enterica (n = 2), and Proteus vulgaris (n = 1).