Korean J Nutr.  2003 Jul;36(6):613-621.

A Case-Control Study on Dietary Quality and Risk for Coronary Heart Disease in Korean Men

• Oh KW
• Nam CM
• Park JH
• Yoon JY
• Shim JS
• Lee KH
• Suh I

Abstract

OBJECTIVE
The purpose of this study was to investigate the association between dietary quality and the risk of coronary heart disease (CBD) among Korean men by a case-control study.
METHODS
The cases were 108 male patients with a first acute myocardial infarction or a new diagnosis of angina pectoris who were admitted to a university teaching hospital in Seoul. Controls were 142 age-matched patients admitted to the departments of ophthalmology and orthopedic surgery at the same hospital. Dietary information was assessed by a nutritionist using a semiquantitative food frequency questionnaire (FFQ), and dietary quality index (DQI) scores were calculated.
RESULTS
The intakes of total fat and cholesterol and body mass index (BMI) in cases were significantly higher than those in controls. The mean DQI scores were 8.6 for the cases and 9.4 for the controls. A higher DQI, which was indicative of a better quality diet, was inversely associated with the risk of CHD when comparing the highest to lowest quatiles, but borderline significant (odd ratios 0.60, 95% confidence interval 0.25-1.39, P for trend=0.05).
CONCLUSIONS
Our findings suggest that better dietary quality may reduce the risk of CHD among Korean men.

Keyword

dietary quality index (DQI); coronary heart disease (CHD); case-control study

MeSH Terms

Angina Pectoris
Body Mass Index
Case-Control Studies*
Cholesterol
Coronary Disease*
Diagnosis
Diet
Hospitals, Teaching
Humans
Male
Myocardial Infarction
Nutritionists
Ophthalmology
Orthopedics
Surveys and Questionnaires
Seoul
Cholesterol