2010—2013年中国老年居民抗氧化营养素摄入状况

Antioxidant Nutrients Intake of Chinese Elderly Residents Between 2010 and 2013

目的:分析中国老年居民膳食中抗氧化营养素维生素A、维生素C、维生素E和硒的摄入状况。方法:数据来自2010—2013年中国居民营养与健康状况监测中连续3d24h膳食回顾调查。研究对象为中国内地31个省份150个监测点16186名60岁及以上居民,分析其膳食中维生素A、维生素C、维生素E和硒的摄入量。结果:中国老年居民抗氧化营养素平均摄入量为视黄醇当量367.3μg、视黄醇活性当量234.7μg、维生素E30.2mg,其中α-生育酚当量6.7mg、维生素C70.0mg、硒37.6μg。维生素A、维生素C和硒的平均摄入量低于平均需要量(EAR)的人群比例分别为92.8%、71.8%和79.6%,其高于推荐摄入量(RNI)的人群比例分别为4.0%、20.0%和11.3%,维生素E平均摄入量高于适宜摄入量(AI)的人群比例为7.4%。结论:中国老年居民维生素A、维生素C和硒摄入不足问题普遍存在。农村尤其是贫困农村缺乏较为严重。

Objective To analyze dietary intake of antioxidant nutrients including vitamin A,vitamin C,vitamin E and selenium in Chinese elderly residents. Method Data were collected from 2010 to 2013 China National Nutrition and Health Surveillance.Information on antioxidant nutrients consumption was collected using the 24h recall method for 3 consecutive days.Totally 16 186 subjects aged above 60 years old from 150 counties of 31 provinces in China were recruited. Result Mean intake of retinal equivalent and activity equivalent were 367.3μg and 234.7μg respectively.Mean intake of vitamin E and α-tocopherol were 30.2mg and 6.7mg respectively.Mean intake of vitamin C and selenium were 70.0mg and 37.6μg respectively.The percentage of elderly population whose average intake of vitamin A,vitamin C and selenium were lower than estimated average requirement(EAR)was separately 92.8 %,71.8 % and 79.6 %.And its percentage who were higher than recommended nutrient intake(RNI)was separately 4.0 %,20.0 % and 11.3 %.The percentage of elderly population whose average intake of vitamin E was higher than adequate intake(AI)was 7.4 %. Conclusion Dietary intake of vitamin A and vitamin C and selenium was inadequacy in Chinese elderly residents.There was a serious shortage in poor rural areas.