A few antibiotics can represent the total hospital antibiotic consumption

BMC Infectious Diseases

Table 2 Representative antibiotics and mean prediction error (unit: DDD/1,000 patient days)

	Six hospitals		Hanyang University Seoul hospital (HUS)
# main antibiotics	Representative antibiotics	Prediction error	Representative antibiotics	Prediction error
m = 1	AG	26.2	FQ	20.7
	FQ	26.9	BL-BLI	22.0
m = 2	AG + 4^th CEP	17.2	AG + FQ	18.3
	AG + penicillins	18.1	BL-BLI + FQ	18.7
m = 3	AG + BL-BLI + 4^th CEP	12.3	BL-BLI + FQ + 3^rd CEP	15.0
	AG + 4^th CEP + monobactam	14.0	AG + BL-BLI + 3^rd CEP	15.4

Abbreviations: 3^rdCEP 3rd-generation cephalosporins, 4^thCEP 4th-generation cephalosporins, AG aminoglycosides, BL-BLI beta-lactam/beta-lactamase inhibitors, FQ fluoroquinolones

ISSN: 1471-2334