Table 1. Mean incidence rate of MDR-GNB per 1000 patient days by phases.

A. baumannii: Acinetobacter baumannii; E. coli: Escherichia coli; K. pneumoniae: Klebsiella pneumoniae; P. aeruginosa: Pseudomonas aeruginosa; ICU: intensive care unit; MDR-GNB: multidrug-resistant Gram-negative bacteria 

	ADULT ICU				Other Wards/Units
	Phase-1	Phase-2	Phase-3	P value	Phase-1	Phase-2	Phase-3	P value
Overall MDR-GNB	11.08	6.07	3.54	0.0005	0.97	0.85	0.72	0.372
A. baumannii	12.67	7.21	2.81	0.0001	0.64	0.65	0.57	0.879
E. coli	1.33	0.29	0	0.03	0.46	0.29	0.21	0.007
K. pneumoniae	9.46	4.49	3.51	0.0001	0.82	0.68	0.55	0.242
P. aeruginosa	4.4	3.17	2.53	0.115	0.48	0.5	0.36	0.419