Hospital Survey on Patient Safety Culture: 2009 Comparative Database Report Table 7-9

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Table 7-9. Trending: Average Distribution of Number of Events Reported in the Past 12 Months

Number of Events Reported by Respondents	Average Percentage of Respondents Within Hospitals
Number of Events Reported by Respondents	Most Recent	Previous	Change	Maximum Increase	Maximum Decrease	Average Increase	Average Decrease
No events	52%	54%	-2%	24%	-45%	5%	-9%
1 to 2 events	28%	26%	2%	28%	-25%	6%	-5%
3 to 5 events	13%	12%	1%	32%	-19%	4%	-4%
6 to 10 events	4%	5%	-1%	12%	-13%	2%	-2%
11 to 20 events	2%	2%	0%	17%	-8%	2%	-1%
21 event reports or more	1%	1%	0%	7%	-6%	1%	-1%

Note: Based on data from 204 hospitals that repeated survey administration and data submission. The overall number of respondents was 69,541 in the most recent database and 65,321 in the previous database.

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