Diet-Related Factors, Educational Levels and Blood Pressure in a Chinese Population Sample: Findings from the Japan-China Cooperative Research Project.

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Abstract
As part of the Japan-China Cooperative Research Project of the WHO-Cardiovascular Disease and Alimentary Comparison Study, a cross-sectional study was carried out to investigate risk factors for high blood pressure (BP) in male adults in Chongqing, China. Subjects with hypertension (HT) were defined as those if they had systolic BP (SBP) ≥140 mmHg or diastolic BP (DBP) ≥90 mmHg or if they were receiving anti-hypertensive drug therapy. Subjects were also categorized into three groups according to their level of education, i.e., low- (≤6 years), intermediate- (7-9 years), or high- (≥10 years) level education. The results were as follows. (a) 20.3% of subjects had HT, 16.7% had hypercholesterolemia (serum total cholesterol ≥220 mg/dl), and 23.4% were overweight (body mass index ≥25 kg/m2). (b) After adjustment for age, SBP and DBP showed a significant positive association with body mass index, urinary sodium (Na) excretion, and total cholesterol (TC) to high-density lipoprotein (HDL) cholesterol ratio (TC/HDL). SBP and DBP tended to be negatively associated with 24 h urinary potassium (K) and magnesium (Mg) excretion. (c) Subjects with the highest educational level had the lowest prevalence of HT (11.6%), followed by those with the low (22.6%) and the intermediate (25.0%) educational levels (p Hypertens Res 2002; 25: 559-564)

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