Breast-fed infants and their later cardiovascular health: a prospective study from birth to age 32 years

Area of Science:

• Cardiovascular Health
• Pediatric Health
• Public Health

Background:

• Infant feeding practices may influence long-term health outcomes.
• Cardiovascular disease (CVD) risk factors often track from childhood into adulthood.
• Understanding modifiable early-life factors is crucial for preventative health strategies.

Purpose of the Study:

• To investigate the association between the duration of infant breast-feeding and cardiovascular risk factors in young adulthood.
• To assess the impact of breast-feeding on individual CVD risk markers and composite scores.
• To identify predictors of cardiovascular risk in a prospectively followed cohort.

Main Methods:

• Prospective cohort study of 158 individuals followed from birth (1975) to age 32.
• Precise breast-feeding duration recorded during infancy.
• Assessment of cardiovascular risk factors including blood pressure, lipids, insulin resistance, waist circumference, Framingham Risk Score (FRS), and metabolic syndrome (NCEP-ATPIII).
• Covariates included sex, physical activity, diet, smoking, and alcohol consumption.

Main Results:

• No significant association was found between the duration of breast-feeding and the Framingham Risk Score (FRS).
• Breast-feeding duration showed a minor impact on individual cardiovascular risk factors.
• Logistic regression revealed no significant effect of breast-feeding duration on the risk of metabolic syndrome.
• Male sex emerged as the strongest independent predictor of later cardiovascular disease risk.

Conclusions:

• The duration of infant breast-feeding did not significantly impact the accumulation of cardiovascular risk factors in young adults.
• Early-life cardiovascular risk appears to be more strongly influenced by factors such as sex.
• This study highlights the complexity of cardiovascular risk development from infancy to adulthood.