TABLE 3.

Numbers and rates of hospitalization and intensive care unit (ICU) admission or death among attendees of selected electronic dance music festivals — New York City and Los Angeles, 2010–2014

Electronic dance music festival (year)	Person-days attendance	Transported to ED*	Treated in medical tent*	Total hospitalizations†		ICU admission or death†
	No.	No.	No.	No.	Rate per 10,000 person-days	No.	Rate per 10,000 person-days
Los Angeles New Year’s Eve festival (2010)	45,000	18	NA	3	0.67	1§	0.22
New York City festival A (2012)	106,000	135	1,100	11	1.04	7	0.66
New York City festival A (2013)	80,000	18	964	5	0.63	7	0.88
New York City festival B (2013)	90,000	39	252	4	0.44	4	0.44
New York City festival A (2014)	58,000	10	NA	1	0.17	2	0.34

Abbreviations: ED = emergency department; NA = not available.

^*Number of persons transported to ED and treated in medical tent as reported by medical providers.

^†p-values were >0.05 for comparison of rates among all festivals.

^§Los Angeles reported the death of one attendee; however, this death did not meet the case definition because death occurred >12 hours after the festival ended.