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KMID : 0664320090150030311
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Journal of the Korean Dietetic Association
2009 Volume.15 No. 3 p.311 ~ p.327
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Health and Nutritional Factors Related to Hypertension of Subjects Aged Over 50 in High Income Class -Based on the 2005 Korea National Health and Nutrition Examination Survey-
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Ahn So-Hyun
Son Sook-Mee
Park Jin-Kyung
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Abstract
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This study was performed to determine the health and nutritional risk factors associated with hypertension in Koreans over the age of 50 in a high-income class (more than twice as much family income as the 2005 Korean minimum cost of living, 668,540 Won). A total of 505 subjects aged over 50 from the 2005 Korean National Health and Nutrition Examination Survey (KNHANES) were divided into two groups: A hypertension group (HG) (N=151, Systolic Blood Pressure ≥140 mmHg or Diastolic Blood Pressure ≥90 mmHg) and normal group (NG) (N=354). Subjects who took hypertension medicines or underwent diet therapy were excluded. In HG, mean daily alcohol intake and the amount of alcohol consumption per one occasion were significantly higher than in NG, respectively. A greater number of hypertension subjects answered that they drank alcohol to reduce stress as compared to normal subjects. HG also took fewer dietary supplements than NG. Mean body mass index (BMI), waist circumference, fasting blood sugar level, and 2 hour postprandial blood sugar following a glucose load were significantly higher in HG than in NG, respectively. Also, iron, thiamin, and niacin intakes and the consumption frequency of seaweeds were significantly lower in HG than in NG, respectively. Finally, obesity (BMI ≥25 kg/m2), abdominal obesity (waist circumference ≥90 cm for males, ≥ 80 cm for females), high blood sugar level 2 hours after an oral glucose load (≥140∼200 mg/dl), and hypertriglyceridemia (serum TG ≥200 mg/dl) were related to a significantly higher risk of hypertension in the subjects (odds ratio: 1.884∼3.040). In conclusion, dietary factors such as higher alcohol consumption; lowerintakes of iron, thiamin, and niacin; lower consumption frequency of seaweeds; and metabolic syndrome were associated with hypertension in the study subjects.
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KEYWORD
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hypertension, high-income class, Korea National Health and Nutrition Examination Survey, health behavior, nutrition status
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