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Birthweight and health and development at the age of 7 years
C Middle1, A Johnson, F Alderdice
1National Perinatal Epidemiology Unit, Radcliffe Infirmary, Oxford, UK.
Insights
Children born with low birth weight, especially under 1500g, experience more health and educational issues by age seven. This highlights the need for targeted support for these vulnerable children.
Area of Science:
- Pediatric Health
- Developmental Pediatrics
- Public Health
Background:
- Birth weight is a critical determinant of child health outcomes.
- Low birth weight is associated with increased risks for developmental and health problems.
- Understanding these associations is crucial for early intervention and resource allocation.
Purpose of the Study:
- To compare the frequency of health, educational, and behavioral problems in 7-year-old children based on their birth weight.
- To identify specific challenges faced by children with low birth weight.
- To evaluate the utility of a postal survey method for monitoring child health and educational needs.
Main Methods:
- A geographically defined birth cohort of 7-year-old children was studied.
- The study employed a multi-stage postal survey stratified by birth weight categories (under 1500g, 1500-2499g, 2500g+).
- Data were collected from parents, general practitioners (GPs), and teachers via self-administered questionnaires.
Main Results:
- Children weighing less than 1500g at birth showed higher rates of health service use and educational support needs.
- School performance was poorer in children with birth weights under 1500g compared to those weighing 2500g or more.
- Children in the 1500-2499g birth weight group exhibited intermediate rates of these problems.
Conclusions:
- Children with low birth weight, particularly under 1500g, face significantly higher health and educational challenges.
- The postal survey method effectively identifies these disparities and can be used for population health monitoring.
- Findings can inform assessments of health and educational needs for 7-year-old children.
Abstract:
This study was set up to compare the frequency of health, educational and behavioural problems in a geographically defined birth cohort of 7-year-old children grouped by weight at birth. The study design was based on a multi-stage postal survey, with sampling stratified by birthweight. It took place in the four counties of Oxfordshire, Buckinghamshire, Berkshire and Northamptonshire which make up the former Oxford region. We studied 1319 live births to women resident in the former Oxford region in 1985, including all those with birthweights under 1500 g, or whose weight was not recorded, and a sample of those who weighed 1500-2499 g, and of those who weighed 2500 g or more at birth. The children in the sample were traced through the National Health Service Central Register (NHSCR) and self-administered questionnaires were sent to their parents, general practitioners (GP) and teachers. Of the 1169 children who were alive at the age of 7 years and were successfully traced, 805 (75%) were followed up by postal survey. The use of health services, and of additional educational support was higher, and school performance was poorer among children who had weighed less than 1500 g at birth than among children who had weighed 2500 g or more, with the rates for children who had weighed 1500-2499 g falling in between. This survey method identifies the higher rate of health and educational problems in children weighing under 2500 g at birth, particularly those with birthweight under 1500 g, compared with other children. The method could be developed to provide a way of monitoring any changes over time in the prevalence of these problems. This information can be used to assess the health and educational needs of 7-year-old children in the population.