Analysis of Relative Risk of Stroke by Nutrient Intake Levels － Case-Control Study in DaeguㆍGyeongbuk Area, Korea －
2009
Sung, S.J., Kyungpook National University, Daegu, Republic of Korea | Jung, D.G., Kyungpook National University, Daegu, Republic of Korea | Lee, W.K., Kyungpook National University, Daegu, Republic of Korea | Kim, Y.J., Kyungpook National University, Daegu, Republic of Korea | Lee, H.S., Kyungpook National University, Daegu, Republic of Korea
The present study was performed to evaluate energy and nutrients intakes of stroke patients in DaeguㆍGyeongbuk region, and to analyze the relative risk of stroke related to the intake levels of energy and nutrients. The case subjects (n=100) were selected from newly diagnosed stroke patients at Kyungpook National University Hospital. The control subjects (n=150) were selected from community residents who did not have stroke history and were sex and age-matched with the case subjects. The survey was conducted by individual interviews by trained dietitians using semiquantitative food frequency questionnaires. The odds ratios were calculated by using unconditional logistic regression. In male subjects, patient group had significantly higher consumption than the control group in mean daily intakes of energy, all energy yielding nutrients, vitamin B₁, B∧6, niacin, folic acid, vitamin E, phosphorus, potassium, zinc and dietary fiber, and also in the ratio of energy intake from protein and fat. In women subjects, the patient group consumed significantly lower intakes than the control group in fat, vitamin C, folic acid, vitamin E, iron, but vice versa in carbohydrate energy ratio. As for men, the increased intakes of energy, protein, carbohydrate vitamin B₁, E and niacin, zinc, total fatty acids, mono- and poly-unsaturated, n-6 fatty acids significantly raised the relative risk of stroke. As for women, the increased intakes of fat, vitamin A, B₂, B∧6, niacin, vitamin C and E, iron, sodium, potassium, selenium, mono-, poly-unsaturated, n-6 fatty acids, cholesterol, taurine and dietary fiber significantly lowered the relative risk of stroke. The results of the study demonstrated that the effect of several nutrient intake levels, such as niacin, vitamin E and fatty acids, on the relative risk of stroke was inconsistent between sex. The reason for this sex difference needs to be elucidated in a larger scale study.
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