Figure 18. Estimated vaccination coverage with ≥3 doses of diphtheria, tetanus, and acellular pertussis vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015 

Percent Vaccinated 

Month and Year of Birth 

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

 

Figure 19. Estimated vaccination coverage with ≥4 doses of diphtheria, tetanus, and acellular pertussis vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015

Percent Vaccinated 

Month and Year of Birth

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

Figure 20. Estimated vaccination coverage with ≥3 doses of poliovirus vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015 

Percent Vaccinated 

Month and Year of Birth 

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

Figure 21. Estimated vaccination coverage with ≥1 dose of measles, mumps, and rubella vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015 

Percent Vaccinated 

Month and Year of Birth 

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

 

 

 

Figure 22. Estimated vaccination coverage with Haemophilus influenzae type b vaccine(Hib) primary series* by 24 months of age,† by month and year of birth§

 -- National Immunization Survey-Child, United States 2012-2016 

0 

10 

20

30

40

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015

Percent Vaccinated 

Month and Year of Birth

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line

Abbreviations: CI = confidence interval; Hib = Haemophilus influenzae type b vaccine 

* Hib primary series: receipt of ≥2 or ≥3 doses, depending on product type received.

† Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months.

§ Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights.
 

 

 

 

 

Figure 23. Estimated vaccination coverage with Haemophilus influenzae type b vaccine(Hib) full series* by 24 months of age,† by month and year of birth§ -- National Immunization Survey-Child, United States 2012-2016 

0 

10 

20

30

40

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015

Percent Vaccinated 

Month and Year of Birth

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line

Abbreviations: CI = confidence interval; Hib = Haemophilus influenzae type b vaccine 

* Hib full series: receipt of ≥3 or ≥4 doses, depending on product type received.

† Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months.

§ Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights.
 

 

Figure 24. Estimated vaccination coverage with ≥3 doses of hepatitis B vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015 

Percent Vaccinated 

Month and Year of Birth 

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

Figure 25. Estimated vaccination coverage with ≥1 dose of varicella vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015 

Percent Vaccinated 

Month and Year of Birth 

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

Figure 26. Estimated vaccination coverage with ≥3 doses of pneumococcal conjugate vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015 

Percent Vaccinated 

Month and Year of Birth 

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

Figure 27. Estimated vaccination coverage with ≥4 doses of pneumococcal conjugate vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015 

Percent Vaccinated 

Month and Year of Birth 

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

Figure 28. Estimated vaccination coverage with ≥1 dose of hepatitis A vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015 

Percent Vaccinated 

Month and Year of Birth 

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

Figure 29. Estimated vaccination coverage with ≥2 doses of hepatitis A vaccine by 24 months of age,* by month and year of birth† -- National Immunization Survey-Child, United States 2012-2016

0 

10 

20 

30 

40 

50 

60 

70 

80 

90 

100 

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015 

Percent Vaccinated 

Month and Year of Birth 

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = Confidence Interval 

* Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months. 

†

 Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights. 
 

 

Figure 30. Estimated vaccination coverage with the combined seven-vaccine series* by 24 months of age,† by month and year of birth§ -- National Immunization Survey-Child, United States 2012-2016 

0 

10

20 

30

40

50 

60 

70 

80 

90 

100

Jan-2009

Feb-2009

Mar-2009

Apr-2009

May-2009

Jun-2009

Jul-2009

Aug-2009

Sep-2009

Oct-2009

Nov-2009

Dec-2009

Jan-2010

Feb-2010

Mar-2010

Apr-2010

May-2010

Jun-2010

Jul-2010

Aug-2010

Sep-2010

Oct-2010

Nov-2010

Dec-2010

Jan-2011

Feb-2011

Mar-2011

Apr-2011

May-2011

Jun-2011

Jul-2011

Aug-2011

Sep-2011

Oct-2011

Nov-2011

Dec-2011

Jan-2012

Feb-2012

Mar-2012

Apr-2012

May-2012

Jun-2012

Jul-2012

Aug-2012

Sep-2012

Oct-2012

Nov-2012

Dec-2012

Jan-2013

Feb-2013

Mar-2013

Apr-2013

May-2013

Jun-2013

Jul-2013

Aug-2013

Sep-2013

Oct-2013

Nov-2013

Dec-2013

Jan-2014

Feb-2014

Mar-2014

Apr-2014

May-2014

Jun-2014

Jul-2014

Aug-2014

Sep-2014

Oct-2014

Nov-2014

Dec-2014

Jan-2015

Percent Vaccinated 

Month and Year of Birth

Survey Year 2012 Survey Year 2013 Survey Year 2014 Survey Year 2015 Survey Year 2016 Linear Regression Line 95% CI for Regression Line 

Abbreviations: CI = confidence interval; DTaP = diphtheria, tetanus toxoids, and acellular pertussis vaccine; Hib = Haemophilus influenzae type b vaccine; HepB = hepatitis B vaccine; PCV = pneumococcal conjugate vaccine. 

*The combined seven-vaccine series includes ≥4 doses of DTaP, ≥3 doses of poliovirus vaccine, ≥1 dose of measles-containing vaccine, the full series of Hib (≥3 or ≥4 doses, depending on product type of vaccine), ≥3 doses of HepB, ≥1 dose of varicella 

vaccine, and ≥4 doses of PCV.

† Vaccination coverage was assessed before the child reached his/her 24 month birthday. The Kaplan-Meier method was used to account for censoring of vaccination status for children assessed before age 24 months.

§ Estimated linear relationship between month and year of birth and vaccination coverage, based on weighted linear regression analysis using the inverse of the estimated variance of each point estimate to construct the weights.