Table 2.

Usage ratios of different levels of antimicrobial agents and pre-treatment blood culture submission status before and after intervention.

	Therapeutic		Restrictive grade		Special grade
Group	Total number	Delivery rate (%)	Ratio of use (%)	Delivery rate (%)	Ratio of use (%)	Delivery rate (%)
After intervention	12,440	16.1 (2,008/12,440)	55.2 (6,864/12,440)	26.7 (1,831/6,864)	9.0 (1,123/12,440)	57.4 (645/1,123)
Before intervention	11,290	15.2 (1,712/11,290)	58.7 (6,630/11,290)	22.9 (1,515/6,630)	10.9 (1,235/11,290)	57.8 (714/1,235)
p - value		0.039	<0.001	<0.001	<0.001	0.853

p-value derived from chi-square test between the before and after intervention group.