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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.

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