Table 4.

Distribution and antibiotic resistance of MBL-producing NFGNB isolates.

Item/Status	NFGNB isolates*
	MBL (%) (n=56)	Non-MBL (%) (n=60)	P-value
Hospitalization Status
In-patients	55 (55)	45 (45)	0.0002
Out-patients	1 (6.3)	15 (93.8)
Hospital Wards
Surgery	5 (26.3)	14 (73.7)	0.0001
Burn	25 (64.1)	14 (35.9)
ICU	25 (59.5)	17 (40.5)
Out-patients	1 (6.3)	15 (93.8)
MDR
Yes	55 (98.2)	17 (28.3)	<0.001
No	1 (1.8)	43 (71.7)
XDR
Yes	54 (96.4)	7 (11.7)	<0.001
No	2 (3.6)	53 (88.3)

MBL: Metallo-beta-lactamase, MDR: Multidrug-resistant, XDR: Extensively drug-resistant,

NFGNB: Non-fermentative gram-negative bacilli, ICU: Intensive care unit.

^*S. maltophilia isolates, as chromosomal MBL-producers, were excluded.