Hospital Survey on Patient Safety Culture: 2007 Comparative Database Report. Table B-4

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Number of Events Reported by Respondents	Work Area/Unit
	Anesthe- siology	Emer- gency	ICU (any type)	Lab	Medicine	Obstetrics	Pediatr.	Pharm.	Psych/ Mentl Hlth	Radi- ology	Rehabil- itation	Surgery
	88 Hospi- tals	301 Hospi- tals	215 Hospi- tals	319 Hospi- tals	319 Hospi- tals	195 Hospi- tals	116 Hospi- tals	271 Hospi- tals	115 Hospi- tals	330 Hospi- tals	286 Hospi- tals	299 Hospi- tals
	720 Respon- dents	5,168 Respon- dents	5,992 Respon- dents	5,118 Respon- dents	8,279 Respon- dents	3,880 Respon- dents	1,763 Respon- dents	2,744 Respon- dents	2,301 Respon- dents	5,600 Respon- dents	4,153 Respon- dents	9,351 Respon- dents
No events	59%	44%	31%	51%	38%	40%	50%	41%	48%	56%	58%	46%
1 to 2 events	31%	32%	35%	28%	31%	40%	31%	16%	29%	31%	32%	33%
3 to 5 events	5%	15%	24%	11%	22%	14%	14%	15%	14%	10%	7%	14%
6 to 10 events	3%	5%	7%	5%	6%	5%	4%	12%	6%	3%	2%	5%
11 to 20 events	1%	2%	2%	2%	3%	1%	0%	8%	2%	1%	0%	2%
21 event reports or more	2%	1%	0%	2%	1%	0%	0%	8%	1%	0%	0%	1%