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Childhood immunisation and family size
Health Trends
|December 9, 1992
Summary
Children in larger families have lower pertussis vaccination uptake. Vaccination rates decreased as family size increased, with children from larger families also being vaccinated later. This highlights a need for targeted immunization strategies.
Area of Science:
- Pediatrics
- Public Health
- Epidemiology
Background:
- Vaccination uptake is crucial for child health and disease prevention.
- Family size is a potential determinant of healthcare access and adherence to vaccination schedules.
Purpose of the Study:
- To investigate the association between family size and pertussis vaccination uptake in children.
- To identify if larger families exhibit lower vaccination rates or delayed vaccination schedules.
Main Methods:
- Analysis of pertussis vaccination status in 3,694 children aged 12-14 months using child health computer system data.
- Logistic regression analysis to assess the impact of family size on vaccination odds, controlling for other factors.
Main Results:
- A significant inverse association was found between family size and pertussis vaccination uptake.
- Uptake rates declined from 86% in one-child families to 58% in families with five or more children.
- Increased family size was linked to lower odds of vaccination (OR 1.7 rural/suburban, 1.3 inner-city) and later vaccination timing.
Conclusions:
- Family size is a critical factor influencing childhood vaccination performance.
- Targeted interventions using child health data are recommended to improve vaccination rates in larger families.
- Public health strategies should consider family size when addressing immunization gaps.