Table 2.

Incidence rates of EMS naloxone administration by Baltimore City Emergency Medical Services in Baltimore for patients 15 years and over by sex and age (October 2008-09).^#

	Baltimore city population estimate	Naloxone administrations	Incidence rate per 1,000 person-years	(95% CI)
Males
15 - 19	24,895	11	0.41	(0.20, 0.73)
20 - 24	23,492	38	1.49	(1.06, 2.05)
25 - 34	42,370	110	2.40	(1.97, 2.89)
35 - 44	41,740	182	4.05	(3.46, 4.65)
45 - 54	42,322	290	6.37	(5.62, 7.10)
55 - 59	17,307	70	3.79	(2.91, 4.72)
60 - 64	12,657	51	3.72	(2.77, 4.89)
65 - 74	15,898	33	1.92	(1.32, 2.69)
75 - 84	9,811	15	1.41	(0.79, 2.33)
85 or older	2,929	5	1.58	(0.51, 3.68)
Missing		24
Total	233,421	829	2.59	(2.40, 2.75)
Females
15 - 19	25,665	10	0.36	(0.17, 0.66)
20 - 24	25,578	19	0.72	(0.41, 1.07)
25 - 34	46,996	63	1.24	(0.95, 1.58)
35 - 44	46,079	106	2.12	(1.74, 2.57)
45 - 54	50,186	136	2.50	(2.10, 2.96)
55 - 59	21,063	47	2.06	(1.51, 2.74)
60 - 64	16,289	20	1.13	(0.69, 1.75)
65 - 74	22,662	20	0.81	(0.50, 1.26)
75 - 84	17,626	11	0.58	(0.29, 1.03)
85 or older	7,151	12	1.55	(0.80, 2.71)
Missing		13
Total	279,295	457	1.24	(1.13, 1.35)
City Total	512,716	1,286	1.87	(1.76, 1.96)

^#Baltimore resident data are from US Census (2008)³¹.