The impact of residency and urbanicity on Haemophilus influenzae Type b and pneumococcal immunization in Shanghai Children: a Retrospective Cohort Study.

<h4>Background</h4>Haemophilus influenzae type b (Hib) vaccine and pneumococcal conjugate vaccine (PCV) are relatively expensive, newly introduced vaccines in China. This study evaluates the impact of residency and urbanicity on Hib vaccine and PCV coverage for children aged 2 to 7 years...

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Main Authors: Abram L Wagner, Xiaodong Sun, JoLynn P Montgomery, Zhuoying Huang, Matthew L Boulton
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2014-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0097800
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author Abram L Wagner
Xiaodong Sun
JoLynn P Montgomery
Zhuoying Huang
Matthew L Boulton
author_facet Abram L Wagner
Xiaodong Sun
JoLynn P Montgomery
Zhuoying Huang
Matthew L Boulton
author_sort Abram L Wagner
collection DOAJ
description <h4>Background</h4>Haemophilus influenzae type b (Hib) vaccine and pneumococcal conjugate vaccine (PCV) are relatively expensive, newly introduced vaccines in China. This study evaluates the impact of residency and urbanicity on Hib vaccine and PCV coverage for children aged 2 to 7 years living in Shanghai, China, in August 2012.<h4>Methods</h4>In this exploratory cohort study, a sample of children aged 2 to 7 years, all of whom were eligible to have received the complete series of Hib vaccine and PCV, was obtained from the Shanghai Immunization Program Information System. Three measures of vaccination coverage for Hib vaccine and PCV were examined: dose 1 coverage, series completion, and timeliness of dose 1 vaccination. Multivariable binomial regression was used to estimate the difference in vaccination coverage between locals and the floating population.<h4>Results</h4>Dose 1 coverage was 50.9% for Hib vaccine and 11.4% for PCV for the 28,141 abstracted pediatric records. For both vaccines, dose 1 coverage was higher in locals than in the floating population. The disparity in coverage between locals and the floating population was greater in suburban areas than urban areas. Of all children who received dose 1, 79.7% completed the Hib vaccine series, and 91.3% completed the PCV series. Timely dose 1 coverage was 8.2% for Hib vaccine and 0.5% for PCV.<h4>Conclusion</h4>Low vaccination coverage and extremely low levels of timely dose 1 vaccination indicate that current vaccination efforts are inadequate to reduce the burden of Hib and pneumococcal disease among Chinese children, especially infants. Government funding of the Hib vaccine and PCV through the Expanded Program on Immunization would increase uptake and could also ensure that improvement in the timeliness of administration and series completion is targeted for all demographic groups.
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spelling doaj-art-149ae0d4427d41cea908c4f118b7dd212025-08-20T03:25:46ZengPublic Library of Science (PLoS)PLoS ONE1932-62032014-01-0195e9780010.1371/journal.pone.0097800The impact of residency and urbanicity on Haemophilus influenzae Type b and pneumococcal immunization in Shanghai Children: a Retrospective Cohort Study.Abram L WagnerXiaodong SunJoLynn P MontgomeryZhuoying HuangMatthew L Boulton<h4>Background</h4>Haemophilus influenzae type b (Hib) vaccine and pneumococcal conjugate vaccine (PCV) are relatively expensive, newly introduced vaccines in China. This study evaluates the impact of residency and urbanicity on Hib vaccine and PCV coverage for children aged 2 to 7 years living in Shanghai, China, in August 2012.<h4>Methods</h4>In this exploratory cohort study, a sample of children aged 2 to 7 years, all of whom were eligible to have received the complete series of Hib vaccine and PCV, was obtained from the Shanghai Immunization Program Information System. Three measures of vaccination coverage for Hib vaccine and PCV were examined: dose 1 coverage, series completion, and timeliness of dose 1 vaccination. Multivariable binomial regression was used to estimate the difference in vaccination coverage between locals and the floating population.<h4>Results</h4>Dose 1 coverage was 50.9% for Hib vaccine and 11.4% for PCV for the 28,141 abstracted pediatric records. For both vaccines, dose 1 coverage was higher in locals than in the floating population. The disparity in coverage between locals and the floating population was greater in suburban areas than urban areas. Of all children who received dose 1, 79.7% completed the Hib vaccine series, and 91.3% completed the PCV series. Timely dose 1 coverage was 8.2% for Hib vaccine and 0.5% for PCV.<h4>Conclusion</h4>Low vaccination coverage and extremely low levels of timely dose 1 vaccination indicate that current vaccination efforts are inadequate to reduce the burden of Hib and pneumococcal disease among Chinese children, especially infants. Government funding of the Hib vaccine and PCV through the Expanded Program on Immunization would increase uptake and could also ensure that improvement in the timeliness of administration and series completion is targeted for all demographic groups.https://doi.org/10.1371/journal.pone.0097800
spellingShingle Abram L Wagner
Xiaodong Sun
JoLynn P Montgomery
Zhuoying Huang
Matthew L Boulton
The impact of residency and urbanicity on Haemophilus influenzae Type b and pneumococcal immunization in Shanghai Children: a Retrospective Cohort Study.
PLoS ONE
title The impact of residency and urbanicity on Haemophilus influenzae Type b and pneumococcal immunization in Shanghai Children: a Retrospective Cohort Study.
title_full The impact of residency and urbanicity on Haemophilus influenzae Type b and pneumococcal immunization in Shanghai Children: a Retrospective Cohort Study.
title_fullStr The impact of residency and urbanicity on Haemophilus influenzae Type b and pneumococcal immunization in Shanghai Children: a Retrospective Cohort Study.
title_full_unstemmed The impact of residency and urbanicity on Haemophilus influenzae Type b and pneumococcal immunization in Shanghai Children: a Retrospective Cohort Study.
title_short The impact of residency and urbanicity on Haemophilus influenzae Type b and pneumococcal immunization in Shanghai Children: a Retrospective Cohort Study.
title_sort impact of residency and urbanicity on haemophilus influenzae type b and pneumococcal immunization in shanghai children a retrospective cohort study
url https://doi.org/10.1371/journal.pone.0097800
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