Flu Vaccination Coverage by High-Risk Conditions, Adults, BRFSS
Influenza vaccination coverage is monitored among persons with medical conditions that put them at high risk of complications from influenza. The number of high-risk medical conditions that are followed over time was increased for the 2013-14 influenza season. Before this season, a person was considered at high-risk for flu complications if they reported having asthma, diabetes, or heart disease. In 2013-14, a person was considered at high-risk if they had any of the following conditions: asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer. The effect of this change on flu vaccination coverage is shown below. Additional information on methods is available at Surveillance of Influenza Vaccination Coverage — United States, 2007–08 Through 2011–12 Influenza Seasons.
Seasonal Influenza Vaccination Coverage by High-Risk Conditions, Adults 18-64 Years, United States, Behavioral Risk Factor Surveillance System (BRFSS), 2011-12 through 2013-14 Influenza Seasons
2011-12*
2012-13†
2013-14‡
Unweighted Sample Size
% ± 95% CI
Unweighted Sample Size
% ± 95% CI
Unweighted Sample Size
% ± 95% CI
18-49 years
Overall
131,452
28.6 ± 0.6
120,286
31.1 ± 0.8
119,708
32.3 ± 0.6
Asthma
12,240
36.4 ± 2.4
11,716
37.8 ± 2.4
11,430
39.7 ± 2.4
Heart disease
2,445
36.0 ± 5.3
2,253
42.3 ± 7.6
2,154
40.9 ± 7.1
Diabetes
5,686
40.7 ± 3.5
5,125
45.8 ± 3.7
5,093
45.8 ± 3.1
Chronic obstructive pulmonary disease (COPD)
4,733
33.3 ± 4.1
4,471
38.2 ± 4.7
4,175
34.3 ± 4.1
Cancer§
3,781
36.8 ± 3.7
3,501
34.4 ± 3.9
3,457
37.8 ± 3.5
Any high-risk condition (asthma, heart disease, or diabetes)
18,444
36.8 ± 2.0
17,296
39.8 ± 2.2
16,885
40.3 ± 2.0
No high-risk condition (no asthma, heart disease, or diabetes)
111,028
27.9 ± 0.6
101,802
29.8 ± 0.8
101,452
31.2 ± 0.8
Any high-risk condition (asthma, heart disease, diabetes, COPD, or cancer)
23,186
35.7 ± 1.6
21,768
38.1 ± 1.8
21,198
38.7 ± 1.8
No high-risk condition (no asthma, heart disease, diabetes, COPD, or cancer)
106,067
27.8 ± 0.8
97,149
29.8 ± 0.8
97,005
31.1 ± 0.8
18-64 years
Overall
250,326
33.1 ± 0.6
232,856
35.7 ± 0.6
233,459
36.7 ± 0.6
Asthma
23,792
42.7 ± 1.8
22,851
44.3 ± 1.8
22,708
45.7 ± 1.8
Heart disease
12,228
47.7 ± 2.5
11,702
48.1 ± 2.7
11,215
48.2 ± 2.7
Diabetes
22,415
51.0 ± 2.0
21,006
52.7 ± 2.0
21,097
52.9 ± 1.8
Chronic obstructive pulmonary disease (COPD)
15,217
45.4 ± 2.4
14,830
46.1 ± 2.4
14,620
45.7 ± 2.2
Cancer
13,833
43.8 ± 2.2
13,010
45.0 ± 2.2
13,020
48.5 ± 2.0
Any high-risk condition (asthma, heart disease, or diabetes)
49,403
45.2 ± 1.2
47,017
47.0 ± 1.4
46,586
47.4 ± 1.2
No high-risk condition (no asthma, heart disease, or diabetes)
197,548
30.9 ± 0.6
183,592
33.3 ± 0.6
184,447
34.4 ± 0.6
Any high-risk condition (asthma, heart disease, diabetes, COPD, or cancer)
64,218
43.8 ± 1.2
61,072
45.4 ± 1.2
60,603
46.3 ± 1.0
No high-risk condition (no asthma, heart disease, diabetes, COPD, or cancer)
182,475
30.4 ± 0.6
169,331
32.9 ± 0.6
170,313
33.9 ± 0.6
Abbreviation: CI = Confidence interval half-widths
* Based on September 2011 through June 2012 interviews and vaccination received August 2011 through May 2012. Excludes Missouri and South Dakota.
† Based on September 2012 through June 2013 interviews and vaccination received July 2012 through May 2013.
‡ Based on September 2013 through June 2014 interviews and vaccination received July 2013 through May 2014. Excludes January through June interviews in California.
