Background and aim
Cardiovascular risk factors in childhood are predictive of adulthood arterial stiffness. However, it is unknown whether this relationship varies by race or sex.
Methods
Six hundred and eighty adults aged 24–43 had been followed for an average of 26.3 years, from the Bogalusa Heart Study. Brachial to ankle pulse wave velocity (baPWV) measured by an automatic oscillometric technique was used as the outcome variable for arterial stiffness during adulthood. Body mass index (BMI), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C), glucose, and systolic blood pressure (SBP), all measured in childhood, were used as predictors. The average values of childhood measurements at multiple time points were used, standardized to age, race, and sex-specific z-scores.
Results
In the total sample, childhood SBP was the only significant predictor (p<0.001) for adult baPWV. Significant interactions between sex and BMI (p=0.001), between sex and LDL-C (p=0.035), and between race and HDL-C (p=0.002) on adult baPWV were identified. Childhood predictors of adult baPWV were BMI (30.9 cm/second reduction in baPWV per standard deviation increase, 95% confidence interval (CI): −55.0, −6.9 cm/second), LDL-C (30.8 cm/second increase, 95% CI: 2.9, 59.5 cm/second) and HDL-C (46.8 cm/second reduction, 95% CI: −76.2, −17.4 cm/second) in white males, systolic blood pressure (38.2 cm/second increase, 95% CI: 11.0, 65.4 cm/second) in white females, BMI (71.3 cm/second reduction, 95% CI: −119.9, −22.7 cm/second) in black males, and none in black females.
Conclusion
The associations of childhood cardiovascular risk factors with adult arterial stiffness varied by race and sex.