膳食鱼类摄入量与血压的关系

Effects of Fish Consumption on Blood Pressure

目的 :探讨中国人群膳食鱼类摄入量与血压的关系。方法 :资料来源于中美心肺血管病合作研究 ,对北京和广州城乡 3 5～ 5 4岁人群共l 2 64人进行膳食营养调查和血压测定。现场调查按国际标准化的心血管流行病学调查方法进行。膳食调查采用连续 3天 2 4小时回忆法。结果 :总人群平均每天鱼类及海产品的摄入量为 46g。随着鱼类蛋白质摄入量的增加年龄调整平均收缩压和舒张压水平逐渐下降 (P均 <0 .0 0 0 1)。经调整年龄、性别、地区、体重指数、能量、饮酒、吸烟和膳食钠盐后 ,收缩压及舒张压与鱼类摄入量呈负相关关系 ,相关系数分别为 -0 .0 42 8和 -0 .0 894,其中舒张压达到显著性水平 (P =0 .0 0 18)。结论 :膳食鱼类摄人量与血压水平呈负相关 ,较高的膳食鱼类及海产品摄人可能对降低血压有益。

Objective:To explore the potential effects of dietary fish on blood pressure level in healthy Chinese urban and rural population.Methods:The PRC-USA collaborative study on cardiovascular and cardiopulmonary diseases was carried out on urban and rural samples in Beijing and Guangzhou. With international standardized epidemiology methods,men and women aged 35 to 54 years old were surveyed. Dietary data were obtained in 1 264 subjects using three 24 hr recalls.Results:The average fish and seafood consumption of the Chinese was 46 g per day. After adjusted for age,the levels of systolic blood pressure(SBP)and diastolic blood pressure(DBP)decreased gradually with an increase of fish protein consumption (p<0.0001 in both SBP and DBP). Significant inverse relationship was found between DBP and dietary fish intake,after adjusted for age,sex,site,BMI,energy intake,alcohol consumption,smoking and sodium intake. The correlation coefficients of fish intake with SBP and DBP were-0.0428 and - 0.0894,respectively.Conclusion: There is a correlation between blood pressure and dietary fish consumption. The result of this study support the hypothesis that higher dietary fish and seafood intake has favorable influences on blood pressure.