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.

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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.

§ Other than skin cancer.