Trends and Drivers of Inpatient Antibiotic Consumption among 89 China Tertiary General Hospitals from 2011Q1 to 2015Q4

Table 1

Distribution of antibiotic consumption [n = 1780].

Indicator	Variable	Median	IQR
DDDs	Regions			H=177.050
	Eastern	65227	43265
	Central	88855	95542
	Western	79697	33997
	Northeastern	90053	72565
	Ownership			H=94.684
	National hospital	106709	115665
	Provincial hospital	76162	46415
	Municipal hospital	68675	45485
	Tim			H=38.313 p=0.005
	2011Q1	92568	85936
	2015Q4	82859	60562
AUD	Regions			H=52.759
	Eastern	50	19
	Central	54	26
	Western	46	17
	Northeastern	51	24
	Ownership			H=63.253
	National hospital	60	32
	Provincial hospital	48	20
	Municipal hospital	51	19
	Tim			H=220.919
	2011Q1	74	33
	2015Q4	45	17
Drug variety	Regions			H=47.982
	Eastern	71	17
	Central	72	26
	Western	69	23
	Northeastern	65	15
	Ownership			H=24.316
	National hospital	71	20
	Provincial hospital	67	19
	Municipal hospital	73	21
	Tim			H=247.050
	2011Q1	93	34
	2015Q4	67	17

IQR, interquartile-range; DDDs, accumulative defined daily doses; AUD, antibiotic use density.
DDDs = ∑ (drug specification × amount/defined daily dose).
AUD = DDDs × 100/inpatient days, presented as “DDDs per 100 inpatients per day”.
Drugs variety refers to the total number of drug types, presented as “kinds”.
for all quarters.