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Uptake and behavioural and attitudinal determinants of immunization in an expanded routine infant hepatitis B
M Bigham1, V P Remple, K Pielak
1Department of Health Care and Epidemiology, University of British Columbia, Vancouver, BC. mark.bigham@bloodservices.ca
Insights
British Columbia
Area of Science:
- Public Health
- Immunization Programs
- Pediatric Medicine
Background:
- British Columbia initiated a universal infant hepatitis B (HB) immunization program in 2001.
- This study focuses on infants outside the Vancouver-Richmond health region.
Purpose of the Study:
- Evaluate HB immunization coverage in infants.
- Assess parental determinants of HB immunization uptake.
Main Methods:
- Cross-sectional survey of a random infant sample (born Jan-June 2001).
- Data collected via provincial health system and telephone surveys (n=487).
- Parental attitudes assessed using the Immunization Health Belief Model Scale.
Main Results:
- 89% of infants received at least one HB vaccine dose; 78% completed the 3-dose schedule.
- Healthcare professional recommendation significantly influenced HB immunization (p<0.001).
- Parental concern regarding side effects was the primary reason for non-immunization.
Conclusions:
- 78% of infants completed the 3-dose hepatitis B vaccination schedule.
- Parental decisions on infant HB immunization were strongly influenced by healthcare provider recommendations.
Introduction:
British Columbia (BC) implemented a universal infant hepatitis B (HB) immunization program in 2001. The study objective was to evaluate HB immunization coverage among the first six-month cohort of eligible infants in the province outside of the Vancouver-Richmond health region and to assess parent/guardian behavioural and attitudinal determinants of HB immunization.
Methods:
A cross-sectional survey of HB immunization was conducted using a random sample of eligible infants born between 1 January-30 June 2001. HB immunization coverage data were obtained from the provincial Public Health Information System, and through a telephone survey of 487 of eligible infants' parents/guardians that was conducted between October 2002-January 2003. At this time, parents/guardians were also asked about behaviours and attitudes towards immunization, based on the Immunization Health Belief Model Scale.
Results:
HB immunization coverage with at least one dose of HB vaccine was 89% and uptake of 3 doses of HB vaccine was 78%. HB immunization was significantly associated (p<0.001) with a recommendation for HB immunization from a health care professional. The main reason for non-HB immunization was parental concern about side effects.
Discussion:
Seventy-eight percent of infants completed the 3-dose HB vaccination schedule. Parental behaviour regarding HB immunization of their children was strongly influenced by a supportive recommendation from either a nurse or doctor.
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