TABLE 3.

Number and percentage of heat stroke decedents with onset at home (n = 41), by selected housing characteristics,^* compared with percentage of city residents overall — New York City, 2008–2011

Housing characteristic	Heat stroke decedents			Residents overall		p-value
	No.	(%)	(95% CI)	(%)	(95% CI)
Air conditioner in the home
Present, working, and in use†	0	—	—	(87)	(87–88)
Not working or not in use	3	(12)	(3–30)
No	23	(88)	(70–98)	(13)	(12–13)	<0.001
Unknown§	15	—	—
Lived alone
Yes	7	(18)	(6–31)	(14)	(14–14)
No	31	(82)	(66–92)	(86)	(86–86)	0.432
Unknown§	3	—	—
Building type
1 or 2 units	14	(36)	(21–53)	(33)	(33–34)
≥3 units, walk-up	16	(41)	(26–58)	(32)	(31–33)
≥3 units, elevator	9	(23)	(11–39)	(35)	(34–36)	0.262
Unknown§	2	—	—
No. of floors
≤2	16	(39)	(24–56)	(30)	(29–31)
3–5	12	(29)	(16–46)	(35)	(34–36)
≥6	13	(32)	(18–48)	(36)	(35–36)	0.395
Public housing
Yes	1	(2)	(1–13)	(6)	(6–6)
No	40	(98)	(87–99)	(94)	(94–95)	0.337

Abbreviation: CI = confidence interval.

^*Comparison with percentage of New York City residents overall is from the 2010 U.S. Census for householders living alone; household occupancy type and structure type is from the 2008 New York City Housing and Vacancy Survey. Comparison with citywide air conditioning prevalence is from the 2007 New York City Community Health Survey for residents living in households with or without air conditioning. Additional information available at http://www.nyc.gov/html/goh/html/data/survey.shtml.

^†Percentages for residents overall include all homes with air conditioners, whether working or not.

^§Excluded from the denominator.