Related Experiment Videos
Birthweight and blood pressure among children in Harare, Zimbabwe
G Woelk1, I Emanuel, N S Weiss
1Department of Community Medicine, University of Zimbabwe, Harare, Zimbabwe.
Insights
Lower birth weight in children is linked to higher systolic blood pressure, suggesting fetal size impacts childhood blood pressure. This study highlights potential early indicators for hypertension risk.
Area of Science:
- Pediatric Health
- Cardiovascular Epidemiology
- Public Health in Africa
Background:
- Intrauterine growth restriction is a concern in low-income settings.
- Early life factors may influence adult cardiovascular health.
- Understanding links between fetal development and later blood pressure is crucial.
Purpose of the Study:
- To investigate the association between poor uterine growth and elevated blood pressure in childhood.
- To explore the relationship between intrauterine growth indices and hypertension risk in a Zimbabwean cohort.
Main Methods:
- Retrospective cohort study involving 756 schoolchildren (mean age 6.5 years) in Harare, Zimbabwe.
- Assessment of intrauterine growth indices (birthweight, occipito-frontal circumference, birth length, gestational age).
- Measurement of systolic and diastolic blood pressure, adjusted for current weight.
Main Results:
- A significant inverse relationship was found between birthweight and systolic blood pressure (1.73 mm Hg increase per kg decrease in birthweight).
- Occipito-frontal circumference also showed an inverse association with systolic blood pressure after weight adjustment.
- No significant associations were observed between birth length, gestational age, or diastolic blood pressure and intrauterine growth indices.
Conclusions:
- Fetal size, particularly birthweight and head circumference, may be inversely associated with systolic blood pressure in African children.
- These findings suggest that early growth parameters could serve as indicators for future cardiovascular risk.
Aim:
To determine whether poor uterine growth may be associated with increased blood pressure and subsequent hypertension in adulthood.
Methods:
A retrospective cohort study of 756 schoolchildren (mean age 6.5 years) was carried out in six low income areas in Harare city, Zimbabwe. Indices of intrauterine growth and blood pressure were assessed.
Results:
Adjusted for current weight, the children's systolic blood pressure was inversely related to their birthweight; for each decreasing kg of birthweight, systolic blood pressure rose by 1.73 mm Hg (95% CI; 0.181 to 3.28). After adjustment for current weight, systolic blood pressure was also inversely associated with occipito-frontal circumference, but not with birth length or gestational age. Diastolic blood pressure was not associated with any of the intrauterine indices.
Conclusion:
Fetal size may be inversely related to systolic blood pressure in childhood in an African population.