2013-14 Influenza Season Vaccination Coverage Estimates for Local Areas and Territories

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Influenza vaccination coverage for children 6 months through 17 years is available from NIS-Flu for selected local areas and for adults 18 years and older from BRFSS for two territories. Additional information on methods is available at Surveillance of Influenza Vaccination Coverage — United States, 2007–08 Through 2011–12 Influenza Seasons.

Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years, Illinois-City of Chicago, National Immunization Survey-Flu (NIS-Flu), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample Size % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Children
6 mos-17 yrs

1,565

3.0 (±1.5) 12.1 (±3.1) 24.9 (±4.1) 39.5 (±4.8) 50.3 (±4.8) 57.1 (±5.1) 59.5 (±5.1) 60.8 (±5.1) 61.7 (±5.1) 62.2 (±5.1) 64.0 (±5.2)
6 mos-4 yrs

471

§ 11.3 (±5.5) 28.7 (±8.1) 48.6 (±7.9) 60.1 (±7.5) 67.3 (±7.3) 69.9 (±7.1) 72.3 (±7.0) 73.0 (±7.0) 73.2 (±7.0) 78.6 (±7.8)
5-12 yrs

800

§ 13.7 (±4.3) 24.6 (±5.4) 38.7 (±6.3) 50.7 (±6.9) 57.0 (±7.2) 58.9 (±7.4) 59.1 (±7.4) 60.3 (±7.3) 61.3 (±7.2) 61.6 (±7.2)
13-17 yrs

294

§ § 21.7 (±8.8) 32.1 (±9.3) 39.8 (±10.1)|| 47.2 (±11.1)|| 50.1 (±11.1)|| 52.3 (±11.2)|| 52.3 (±11.2)|| 52.3 (±11.2)|| 52.3 (±11.2)||

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years, Illinois-Rest of State, National Immunization Survey-Flu (NIS-Flu), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Children
6 mos-17 yrs

3,328

1.3 (±0.6) 5.7 (±1.3) 13.6 (±1.8) 33.3 (±2.6) 43.5 (±2.8) 46.8 (±2.8) 49.5 (±2.9) 50.5 (±2.9) 50.8 (±2.9) 50.9 (±2.9) 51.1 (±2.9)
6 mos-4 yrs

917

§ 7.0 (±2.8) 17.5 (±3.9) 43.9 (±5.4) 55.4 (±5.5) 60.8 (±5.6) 63.4 (±5.6) 64.2 (±5.6) 64.2 (±5.6) 64.2 (±5.6) 64.2 (±5.6)
5-12 yrs

1,629

§ 4.9 (±1.5) 13.4 (±2.6) 32.9 (±3.5) 43.2 (±3.8) 46.1 (±3.9) 49.4 (±4.0) 51.0 (±4.1) 51.5 (±4.1) 51.5 (±4.1) 51.8 (±4.2)
13-17 yrs

782

§ 5.8 (±2.8) 11.2 (±3.3) 26.7 (±4.6) 36.3 (±5.0) 39.1 (±5.0) 40.8 (±5.1) 40.8 (±5.1) 40.8 (±5.1) 41.3 (±5.2) 41.5 (±5.2)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years, New York-City of New York, National Immunization Survey-Flu (NIS-Flu), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Children
6 mos-17 yrs

2,243

1.9 (±0.8) 7.3 (±1.4) 21.3 (±2.4) 42.0 (±3.1) 53.1 (±3.2) 57.8 (±3.2) 60.8 (±3.3) 63.9 (±3.4) 64.6 (±3.4) 66.3 (±3.5) 66.4 (±3.5)
6 mos-4 yrs

714

§ 10.0 (±3.2) 24.8 (±4.4) 45.5 (±5.3) 58.6 (±5.6) 62.5 (±5.5) 66.3 (±5.7) 69.1 (±5.8) 70.6 (±5.9) 73.6 (±6.6) 73.6 (±6.6)
5-12 yrs

1,032

§ 6.8 (±2.0) 21.5 (±3.4) 44.4 (±4.5) 57.3 (±4.4) 61.7 (±4.4) 65.3 (±4.4) 68.5 (±4.4) 69.1 (±4.4) 70.5 (±4.5) 70.7 (±4.5)
13-17 yrs

497

§ 5.4 (±2.5) 17.6 (±4.6) 34.3 (±6.4) 39.9 (±6.6) 46.0 (±7.0) 47.4 (±7.1) 50.4 (±7.5) 50.4 (±7.5) 51.2 (±7.6) 51.2 (±7.6)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years, New York-Rest of State, National Immunization Survey-Flu (NIS-Flu), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Children
6 mos-17 yrs

2,308

1.3 (±0.7) 4.8 (±1.3) 16.8 (±2.2) 37.9 (±2.9) 50.5 (±3.2) 55.7 (±3.2) 59.1 (±3.3) 61.0 (±3.4) 62.3 (±3.4) 63.1 (±3.5) 63.1 (±3.5)
6 mos-4 yrs

665

§ 7.7 (±3.2) 21.5 (±4.5) 46.5 (±5.5) 58.7 (±5.7) 63.1 (±5.7) 70.6 (±5.8) 71.8 (±5.8) 73.2 (±5.8) 74.4 (±6.0) 74.4 (±6.0)
5-12 yrs

1,138

§ 4.4 (±1.7) 18.0 (±3.2) 39.7 (±4.0) 53.3 (±4.3) 58.7 (±4.3) 61.3 (±4.4) 63.1 (±4.4) 64.1 (±4.5) 64.7 (±4.5) 64.7 (±4.5)
13-17 yrs

505

§ 3.2 (±1.8) 11.2 (±3.3) 27.9 (±5.1) 38.8 (±6.2) 44.5 (±6.7) 45.9 (±6.8) 48.2 (±6.9) 50.2 (±7.1) 50.8 (±7.2) 50.8 (±7.2)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years, Pennsylvania-Philadelphia County, National Immunization Survey-Flu (NIS-Flu), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Children
6 mos-17 yrs

2,463

1.4 (±0.5) 7.3 (±2.3) 21.4 (±2.9) 44.2 (±3.7) 57.3 (±3.7) 62.6 (±3.6) 66.5 (±3.6) 68.5 (±3.6) 69.9 (±3.5) 70.4 (±3.6) 71.3 (±3.7)
6 mos-4 yrs

785

§ 7.1 (±2.3) 25.0 (±4.9) 46.7 (±5.8) 60.8 (±5.9) 66.6 (±5.8) 72.5 (±5.6) 76.1 (±5.6) 76.1 (±5.6) 77.7 (±5.8) 80.1 (±5.9)
5-12 yrs

1,140

1.6 (±0.7) 7.9 (±2.3) 22.8 (±3.7) 44.8 (±4.6) 57.9 (±4.8) 62.4 (±4.8) 66.3 (±4.7) 68.5 (±4.7) 70.5 (±4.9) 70.8 (±4.9) 70.9 (±4.9)
13-17 yrs

538

§ § 16.4 (±6.9) 41.2 (±8.7) 53.7 (±8.1) 59.5 (±7.9) 61.5 (±7.8) 61.8 (±7.8) 63.5 (±7.9) 63.5 (±7.9) 64.0 (±8.0)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years, Pennsylvania-Rest of State, National Immunization Survey-Flu (NIS-Flu), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Children
6 mos-17 yrs

2,986

§ 5.1 (±1.4) 16.1 (±2.5) 38.0 (±3.3) 48.5 (±3.6) 53.2 (±3.7) 55.9 (±3.8) 57.0 (±3.8) 57.1 (±3.8) 58.2 (±4.0) 58.2 (±4.0)
6 mos-4 yrs

885

§ 7.0 (±3.0) 23.6 (±6.1) 48.6 (±6.8) 60.1 (±6.8) 63.8 (±6.8) 68.6 (±6.8) 69.2 (±6.8) 69.3 (±6.8) 69.6 (±6.8) 69.6 (±6.8)
5-12 yrs

1,530

§ 4.4 (±1.6) 14.3 (±3.1) 36.3 (±4.5) 47.6 (±5.0) 53.0 (±5.2) 54.8 (±5.2) 56.1 (±5.3) 56.4 (±5.3) 58.5 (±5.9) 58.5 (±5.9)
13-17 yrs

571

§ § 13.2 (±4.6) 32.1 (±6.3) 40.3 (±6.8) 44.5 (±7.1) 47.1 (±7.2) 48.0 (±7.3) 48.0 (±7.3) 48.0 (±7.3) 48.0 (±7.3)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years, Texas-Bexar County, National Immunization Survey-Flu (NIS-Flu), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Children
6 mos-17 yrs

2,323

1.9 (±0.7) 9.8 (±1.9) 20.9 (±2.9) 38.7 (±3.5) 47.6 (±3.5) 54.5 (±3.6) 58.0 (±3.7) 59.7 (±3.7) 61.0 (±3.8) 61.6 (±3.9) 61.9 (±3.9)
6 mos-4 yrs

651

2.9 (±1.4) 12.5 (±4.3) 23.5 (±4.9) 45.0 (±6.2) 58.0 (±6.3) 65.6 (±6.2) 67.8 (±6.2) 69.2 (±6.3) 71.0 (±6.4) 71.5 (±6.5) 71.5 (±6.5)
5-12 yrs

1,145

2.3 (±1.2) 9.3 (±2.5) 21.0 (±3.9) 39.7 (±5.2) 48.7 (±5.2) 55.1 (±5.2) 59.0 (±5.1) 61.1 (±5.1) 63.4 (±5.2) 64.4 (±5.3) 65.1 (±5.3)
13-17 yrs

527

§ 8.2 (±3.8) 18.4 (±6.2) 31.9 (±6.8) 37.4 (±6.9) 44.1 (±7.3) 48.3 (±7.6) 49.5 (±7.7) 49.5 (±7.7) 49.8 (±7.7) 49.8 (±7.7)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years, Texas-City of Houston, National Immunization Survey-Flu (NIS-Flu), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Children
6 mos-17 yrs

2,142

2.2 (±1.0) 11.2 (±2.2) 22.3 (±3.0) 37.5 (±3.6) 48.0 (±4.1) 53.6 (±4.3) 57.7 (±4.5) 60.8 (±4.6) 62.8 (±4.7) 63.8 (±4.8) 65.0 (±5.0)
6 mos-4 yrs

619

§ 12.8 (±4.7) 27.4 (±6.1) 46.1 (±6.7) 57.4 (±7.1) 64.9 (±7.2) 67.7 (±7.3) 69.9 (±7.5) 71.6 (±7.8) 71.6 (±7.8) 75.8 (±9.3)
5-12 yrs

972

3.0 (±1.7) 13.0 (±3.5) 22.8 (±4.5) 39.0 (±5.4) 49.9 (±5.8) 52.7 (±5.9) 56.4 (±6.0) 59.9 (±6.2) 63.6 (±6.6) 65.0 (±6.8) 65.1 (±6.8)
13-17 yrs

551

§ 6.7 (±3.3) 16.4 (±4.7) 26.7 (±5.9) 36.0 (±7.3) 44.4 (±9.0) 50.7 (±9.5) 53.9 (±9.9) 53.9 (±9.9) 55.0 (±9.9) 55.0 (±9.9)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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Monthly cumulative influenza vaccination coverage estimates* among children 6 months through 17 years, Texas-Rest of State, National Immunization Survey-Flu (NIS-Flu), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Children
6 mos-17 yrs

5,842

1.9 (±0.9) 7.1 (±1.4) 17.6 (±2.5) 36.6 (±3.0) 50.1 (±3.3) 55.4 (±3.3) 59.3 (±3.4) 60.7 (±3.4) 62.0 (±3.5) 62.3 (±3.5) 62.4 (±3.5)
6 mos-4 yrs

1,654

§ 7.0 (±2.2) 20.6 (±5.1) 42.4 (±6.1) 57.5 (±6.5) 63.6 (±6.2) 67.1 (±6.1) 69.4 (±6.3) 72.5 (±6.5) 72.9 (±6.5) 73.2 (±6.4)
5-12 yrs

3,034

§ 8.3 (±2.4) 17.3 (±3.2) 38.1 (±4.2) 51.7 (±4.6) 58.2 (±4.6) 62.7 (±4.7) 63.7 (±4.7) 64.5 (±4.7) 64.9 (±4.7) 64.9 (±4.7)
13-17 yrs

1,154

§ 4.6 (±2.1) 14.8 (±5.5) 27.2 (±5.9) 38.6 (±6.3) 40.6 (±6.3) 43.2 (±6.3) 44.6 (±6.3) 45.3 (±6.4) 45.3 (±6.4) 45.3 (±6.4)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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Monthly cumulative influenza vaccination coverage estimates* among adults 18 years and older, Guam, Behavioral Risk Factor Surveillance System (BRFSS), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
% 95%
CI
Adults
18+ yrs

1,395

§ 2.3 (±1.0) 7.8 (±1.6) 13.6 (±2.2) 17.6 (±2.4) 21.9 (±2.5) 24.7 (±2.7) 26.5 (±2.9) 27.3 (±2.9) 28.3 (±3.1) 29.1 (±3.3)
18-64 yrs

1,245

§ 2.3 (±1.0) 7.6 (±1.8) 12.2 (±2.2) 16.1 (±2.4) 20.0 (±2.7) 22.6 (±2.9) 24.5 (±3.1) 25.4 (±3.1) 26.7 (±3.3) 27.6 (±3.5)
18-64 yrs at high risk**

258

0.0 (±0.0) § 6.4 (±3.5) 13.2 (±5.1) 18.4 (±5.9) 22.1 (±6.5) 25.4 (±6.9) 29.4 (±7.8) 32.6 (±8.4) 32.6 (±8.4) 33.7 (±8.6)
18-49 yrs

894

§ 2.7 (±1.4) 7.0 (±2.0) 11.7 (±2.5) 15.1 (±2.7) 19.2 (±3.1) 21.6 (±3.3) 23.2 (±3.5) 23.8 (±3.5) 25.1 (±3.7) 25.4 (±3.9)
18-49 yrs at high risk**

132

0.0 (±0.0) § § § 13.9 (±7.6) 19.3 (±8.8) 22.5 (±9.6) 22.5 (±9.6) 24.6 (±10.2)|| 24.6 (±10.2)|| 26.4 (±10.6)||
50-64 yrs

351

0.0 (±0.0) § 9.0 (±3.5) 13.7 (±4.1) 18.8 (±4.9) 22.2 (±5.3) 25.2 (±5.7) 28.0 (±6.3) 29.8 (±6.5) 31.0 (±6.9) 33.7 (±8.2)
65+ yrs

150

§ § 9.5 (±5.1) 23.7 (±7.6) 28.7 (±8.2) 36.5 (±9.2) 40.2 (±9.6) 40.9 (±9.6) 40.9 (±9.6) 40.9 (±9.6) 40.9 (±9.6)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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Monthly cumulative influenza vaccination coverage estimates* among adults 18 years and older, Puerto Rico, Behavioral Risk Factor Surveillance System (BRFSS), 2013-14 influenza season

July August September October November December January February March April May
Selected Groups Sample
Size
% 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI % 95% CI
Adults
18+ yrs

4,254

0.7 (±0.4) 1.5 (±0.4) 4.8 (±0.8) 11.0 (±1.2) 17.4 (±1.6) 20.1 (±1.8) 22.5 (±1.8) 24.7 (±2.0) 25.9 (±2.0) 26.5 (±2.2) 27.5 (±2.5)
18-64 yrs

2,876

0.7 (±0.4) 1.6 (±0.6) 4.6 (±1.0) 9.7 (±1.4) 15.3 (±1.8) 17.5 (±2.0) 19.4 (±2.0) 20.9 (±2.2) 21.9 (±2.4) 22.2 (±2.4) 23.4 (±2.7)
18-64 yrs at high risk**

834

§ § 5.6 (±2.0) 11.6 (±2.7) 18.1 (±3.3) 20.2 (±3.7) 22.0 (±3.7) 24.1 (±4.3) 25.5 (±4.5) 25.5 (±4.5) 25.5 (±4.5)
18-49 yrs

1,742

§ 1.7 (±0.6) 4.0 (±1.0) 9.3 (±1.6) 14.3 (±2.2) 16.3 (±2.4) 18.5 (±2.5) 19.4 (±2.5) 20.4 (±2.7) 20.6 (±2.7) 22.2 (±3.7)
18-49 yrs at high risk**

360

§ § 4.4 (±2.4) 11.6 (±3.7) 17.6 (±4.9) 18.7 (±5.1) 20.2 (±5.5) 21.5 (±5.7) 22.5 (±5.9) 22.5 (±5.9) 22.5 (±5.9)
50-64 yrs

1,134

§ 1.4 (±0.8) 6.2 (±2.0) 10.8 (±2.4) 17.8 (±3.1) 20.4 (±3.3) 21.6 (±3.3) 24.4 (±3.9) 25.4 (±4.1) 26.0 (±4.1) 26.0 (±4.1)
65+ yrs

1,378

§ § 5.3 (±1.4) 16.2 (±2.4) 25.9 (±3.1) 30.9 (±3.3) 35.6 (±3.7) 40.6 (±3.9) 42.0 (±4.1) 44.0 (±4.3) 44.5 (±4.3)

Abbreviation: CI = confidence interval half-width

* Coverage estimates are for persons interviewed September (BRFSS) or October (NIS-Flu) 2013 through June 2014 who reported being vaccinated July 2013 through May 2014.

Month of vaccination was imputed for respondents with missing month of vaccination data. Percentages are weighted to the non-institutionalized, U.S. civilian population.

Estimates not reliable because sample size is <30.

§ Estimates not reliable because relative standard error is >0.3.

|| Estimates might not be reliable because confidence interval half-width is >10.

Rest of State refers to the population of a state that does not reside in a local area for which an influenza vaccination coverage estimate was calculated. For example, Illinois-Rest of State refers to the population of Illinois excluding the City of Chicago.

** Selected high-risk (HR) conditions; includes people with asthma, diabetes, heart disease, chronic obstructive pulmonary disease, or cancers other than skin cancer.

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