Poster Topical Area: Nutritional Epidemiology
Location: Hall D
Poster Board Number: 797
Objectives: To determine the longitudinal relationships between dietary vitamin E intake and blood pressure (BP) in UK adolescents.
Methods: A sample of 2126 participants was selected from the Avon Longitudinal Study of Parents and Children (ALSPAC), in which sample was drawn randomly. General information and blood pressure data were collected at age 10, 11, 12, 13, 15 and 17. Diet was assessed using a four-day food record at age 10 and 13. BP data was transformed to systolic/diastolic BP Z-scores (SBPZ/DBPZ). Multivariable linear regression was undertaken to explorer the relationships between vitamin E intake and current or future BPZ. Gender, BMI Z-score, alcohol intake, smoking status, sodium intake, energy intake, physical activity levels, parents hypertension history and household income were adjusted in each model.
Results: In fully adjusted models, every 1mg increase in vitamin E intake at age 10 was associated with 0.20 (95%CI: -0.39 to -0.01) lower SBPZ and 0.23 (95%CI: -0.45 to -0.02) lower DBPZ at age 10, but was associated with 0.21(95%CI: 0.03 to 0.39) higher SBPZ at age 17. Every 1mg increase in vitamin E intake at age 13 was associated with 0.27 (95%CI: 0.06 to 0.48) higher SBPZ at age 17.
Conclusions: in ALSPAC population, negative association was found between dietary vitamin E intake and short term SBPZ and DBPZ at age 10. But positive association was found between dietary vitamin E intake at age 10 and 13 and future SBPZ.
Funding Source: The researcher Ziyi Li was funded by China Scholarship Council.
University of Leeds
Leeds, England, United Kingdom