Table 2: Distribution of AmpC β-lactamase-producing Gram-negative bacteria among hospital departments at King Abdullah Hospital, Bisha, Saudi Arabia.

Isolates (n)Total number (%) of AmpC β-lactamase producersGram-negative isolates per hospital department
ICUs (n = 154), AmpC+Emergency (n = 63), AmpC+Medicine (n = 24), AmpC+Surgery (n = 23), AmpC+OBS and gyne (n = 22), AmpC+Pediatric (n = 10), AmpC+Respiratory (n = 8), AmpC+Urology (n = 7), AmpC+

K. pneumoniae (n = 85)24 (28.2)172230000
E. coli (n = 74)6 (8.1)02300100
Acinetobacter spp. (n = 49)36 (73.5)340110000
P. aeruginosa (n = 37)20 (54.1)123030020
Proteus mirabilis (n = 31)8 (25.8)34010000
Other Gram-negative rods (n = 12)3 (13.0)11001000
Enterobacter cloacae (n = 12)4 (33.3)1110.01000
Total (n = 311)101 (32.5)68 (44.2)13 (20.6)7 (29.2)8 (34.8)2 (9.1)1 (10)2 (25)0 (0.0)

OBS and gyne = obstetrics and gynecology; ICUs = intensive care units.