Document Detail


Immunisation coverage of Queensland indigenous two-year-old children by cluster sampling and by register.
MedLine Citation:
PMID:  17333612     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: To obtain, through a survey, estimates of immunisation coverage in a birth cohort of Indigenous children, and to compare survey estimates with those obtained from the Australian Childhood Immunisation Register (ACIR) for the same birth cohort of Indigenous children. METHODS: Cluster sampling of a birth cohort of two-year-old Indigenous children across Queensland, stratified according to accessibility/remoteness from services, was undertaken in 2003. An innovative method of identifying participants was used. Survey results of 10 vaccine doses were compared with ACIR data. RESULTS: The survey obtained a 4% sample of the birth cohort (137 children). Universally recommended vaccines showed high levels of coverage at 12 and 24 months, and survey estimates were slightly higher than ACIR estimates. Diphtheria-tetanus-acellular pertussis vaccine dose 3 (DTPa3) coverage was 93.8% (95% CI 88.0-99.6) by 12 months on survey and 87.5% on ACIR. Coverage was not timely and a lag phase of 4-6 months occurred for each vaccine dose. Haemophilus influenzae type b vaccine dose 2 (Hib2), scheduled for the age of four months, reached 90% coverage by nine months of age in the survey children. CONCLUSION: Both methods reported here provided similar results. IMPLICATIONS: These data indicate that ACIR Indigenous reporting rates have increased and coverage estimates are comparable to those provided by a survey. Immunisation coverage appears to be high, and the main remaining challenge in further reducing vaccine-preventable disease in Indigenous children is to improve immunisation timeliness.
Authors:
Susan Vlack; Rosemary Foster; Robert Menzies; Gail Williams; Cindy Shannon; Ian Riley
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Australian and New Zealand journal of public health     Volume:  31     ISSN:  1326-0200     ISO Abbreviation:  Aust N Z J Public Health     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-03-05     Completed Date:  2007-04-09     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9611095     Medline TA:  Aust N Z J Public Health     Country:  Australia    
Other Details:
Languages:  eng     Pagination:  67-72     Citation Subset:  IM    
Affiliation:
School of Population Health, University of Queensland. s.vlack@uq.edu.au
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MeSH Terms
Descriptor/Qualifier:
Child, Preschool
Cluster Analysis
Cohort Studies
Female
Health Care Surveys
Health Services, Indigenous*
Humans
Immunization Programs / methods,  utilization*
Male
Medically Underserved Area*
Oceanic Ancestry Group / statistics & numerical data*
Queensland
Registries*
Vaccination / utilization*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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