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. 2017 Jun 9;66(22):584–589. doi: 10.15585/mmwr.mm6622e1

TABLE 2. Demographic characteristics of patients with confirmed Legionnaires’ disease*— 21 U.S. public health jurisdictions, 2015.

Characteristic No. cases (%)
Definite health care–associated (n = 85)
Possible health care–associated (n = 468) Not health care–associated
(n = 2,256)
Age group (yrs)
0–29
0 (0)
16 (3.4)
59 (2.6)
30–39
1 (1.2)
10 (2.1)
148 (6.6)
40–49
2 (2.4)
35 (7.5)
322 (14.3)
50–59
7 (8.2)
111 (23.7)
596 (26.4)
60–69
18 (21.2)
125 (26.7)
557 (24.7)
70–79
23 (27.1)
88 (18.8)
321 (14.2)
80–89
18 (21.2)
67 (14.3)
197 (8.7)
≥90
16 (18.8)
15 (3.2)
53 (2.4)
Unknown
0 (0)
1 (0.2)
3 (0.1)
Sex

Male
40 (47.1)
263 (56.2)
1,419 (62.9)
Female
45 (52.9)
200 (42.7)
820 (36.4)
Unknown
0 (0)
5 (1.1)
17 (0.8)
Race

Black or African American
16 (18.8)
91 (19.4)
598 (26.5)
White
53 (62.3)
315 (67.3)
1,373 (60.9)
Asian
0 (0 )
5 (1.1)
20 (0.9)
American Indian/Alaska Native
0 (0)
2 (0.4)
12 (0.5)
Native Hawaiian/Pacific Islander
0(0)
1(0.2)
3(0.1)
Multiple
1 (1.2)
0 (0)
0 (0)
Unknown
15 (17.7)
54 (11.5)
250 (11.1)
Ethnicity

Hispanic
3 (3.5)
29 (6.2)
159 (7.1)
Non-Hispanic
65 (76.5)
338 (72.2)
1,673 (74.2)
Unknown 17 (20.0)
101 (21.6) 424 (18.8)

* Definite health care–associated Legionnaires’ disease was defined as laboratory-confirmed legionellosis in a patient with continuous exposure to a hospital or long-term care facility for the entire 10 days preceding symptom onset. Possible health care–associated Legionnaires’ disease was defined as laboratory-confirmed legionellosis in a patient with any exposure to a health care facility for a portion of the 10 days preceding symptom onset. All other cases were considered not health care–associated.

Twenty-one jurisdictions that reported ≥90% of confirmed National Notifiable Diseases Surveillance System legionellosis cases to the Supplemental Legionnaires’ Disease Surveillance System in 2015: Alabama, Colorado, Connecticut, Georgia, Hawaii, Iowa, Kentucky, Maine, Michigan, Minnesota, Missouri, New Hampshire, New Mexico, New York, New York City, North Dakota, Ohio, Rhode Island, South Carolina, Texas, and Virginia.