中国八省成人膳食脂肪摄入状况及变化趋势分析——中国八省实例研究

目的 :　探讨 1 991～ 1 997年中国成人膳食脂肪摄入量、脂肪食物来源及其组成变化趋势。方法 :　利用“中国居民健康与营养调查”的资料 ,选取 1 991、1 993和 1 997年调查中 1 8～ 6 5岁健康成人作为研究对象 ,以成人膳食脂肪摄入量、脂肪供能比、脂肪食物来源和脂肪酸组成作为评价居民脂肪摄入状况的指标 ,以 SAS软件对数据库资料进行统计分析。结果及结论 :　 1 991～1 997年在城市、郊区和县城三类地区成人脂肪摄入量增加 ,脂肪提供能量在总能量中所占比例提高 ,城市已达到 3 4 .79%。胆固醇摄入量也呈增加趋势 ,城市居民胆固醇平均摄入水平已达到3 6 1 .5 5 mg/d。植物油脂和动物性食物消费量增加已成为城市居民脂肪摄入提高的主要原因。饱和脂肪酸、单不饱和脂肪酸和多不饱和脂肪酸在总能量中所占比例均呈提高趋势 ,其中以单不饱和脂肪酸增长最快。农村居民膳食脂肪摄入状况稳定在较低的摄入水平。

THE CHANGING TREND OF DIETARY FAT INTAKE OF CHINESE POPULATION -AN EIGHT PROVINCES CASE STUDY IN CHINA

Objective: To investigate the changing trend of dietary fat intake and fatty acid intake of Chinese population.Methods: The data were collected in 1991,1993 and 1997 from China Health and Nutrition Survey, in collaboration with the University of North Carolina at Chapel Hill. The sample was 18-65 years old health man and woman.Results and Conclusion: The results showed that, in 1991-1997, the dietary fats, mean percentage of energy from total fat and the intake of cholesterol increased in the people who lived in urban, suburb and town. The consumption of animal food, especially meat, and vegetable oil increased, and this was the main cause of the increase of dietary fat intake. The mean percentage of energy from saturated, monounsaturated and polyunsaturated fatty acid were all increased. Fatty acid intake of rural people was not changed.