Trends in hospital admissions due to antidepressant-related adverse drug events from 2001 to 2011 in the U.S.

Table 1 Changes in ArADE admissions by age

	2001	2011	Percentage Change in admissions rate^a
N (all admissions)	37,185,482	38,560,751	3.7^b
ArADE admissions*	17,375	20,588	15.32
Age (years)^†
≤ 6	272	233	-25.72
7–17	1,863.4	1,586	-26.20
18–64	14,280	16,787	1.94
≥ 65	656.37	1,082	42.94

^aPercentage changes in rate. Rate was calculated by dividing ArADE admissions or admissions in each age group by total number of all admissions of the respective year. Percentage change was calculated using 2001 rate as the base
^bRate change in number of admissions from 2001 to 2011 using 2001 as the base
*p ≤ 0.01, which indicates there is significant difference between the change in ArADE admissions and the change in overall hospital admissions in the U.S
^† p ≤ 0.01, which indicates changes between different age groups are significantly different
Note: The numbers by age groups were counted after excluding records with missing data. Hence the sum of different age groups is less than the total number ArADE admissions

ISSN: 1472-6963