利用两种食物成分数据库分析孕妇乳母膳食铁摄入量  

Analysis of dietary iron intakes of pregnant and lactating women based on food composition databases from China and US

作　　者：姜婷婷[1] 汪之顼[1] 宋成琳 张曼[1] 李小成[1] 

机构地区：[1]南京医科大学公共卫生学院儿少卫生与妇幼保健学系,南京211166

出　　处：《卫生研究》2014年第4期562-566,共5页Journal of Hygiene Research

基　　金：江苏高校优势学科建设工程资助项目;Nestle Foundation基金资助项目(No.2009)

摘　　要：目的对比基于中美两国食物成分数据库计算出的膳食铁摄入量数据。方法利用《中国食物成分表》和美国农业部营养成分参考标准中食物铁含量数据,对2012年前后获得共368人日的膳食资料进行膳食铁摄入量的计算和统计分析。比较两种数据间的差异。结果共分析了56名城市孕妇合计215人日膳食,以及57名农村乳母合计153人日的膳食。基于中美食物成分计算的膳食铁总摄入量分别为(24.37±9.66)mg和(16.20±9.13)mg(r=0.657,P<0.01),前者是后者的(1.69±0.55)倍。各类食物分项统计中,差别较大的倍数为:奶类(10.66±2.24)、鱼虾(5.10±5.51)、水果(3.01±2.26)、畜肉类(3.01±7.85)和谷类(2.33±0.77);而只有薯类(0.83±0.50)和大豆类(0.75±0.53)比例倒置。按照中国食物成分表估计,调查的孕妇乳母铁摄入量与全国调查水平相近,但依据美国食物成分数据估计出的铁摄入量大约只有中国数据的66%。结论需要关注依据中国食物成分表评估的膳食铁摄入量是否存在高估的可能。Objective To evaluate the difference between estimations on dietary iron intake based on the China and US food composition databases. Methods Total 368 records of 24-h dietary recall on mid-term pregnant women and lactating rural women were analyzed for their iron intakes with the China Food Composition Table 2002 and the USDA National Nutrient Database for Standard Reference release 25, respectively. The values of dietary iron intake derived from two composition databases were compared statistically. Results The dietary iron intakes of total 368 dietary records estimated with China and US databases were （24. 37 ± 9.66） mg and （16.20 ±9. 13） mg respectively （with paired t test, t =20.081, P 〈0.01, correlation coefficient r = 0. 657, P 〈 0. 01 ）, with average ratio of 1.69 ± 0. 55 between China and US values. In terms of food classification, the most significant differences were with dairy products, fishes, fruits, meats and cereals, with ratios of （10.66 ±2.24）, （5. 10 ±5.51）, （3. O1 ±2. 26）, （3. O1 ±7. 85） and （2. 33 ±0. 77）, respectively. Only iron intake values from tuberous crops and soy products had inverse ratio as （0. 83 ± 0. 50 ） and （0. 75± 0. 53 ）. Conclusion The averaged dietary iron intake value for total records was very close to the reported national levels when estimated with the China Food Composition Table 2002, but much deereased when estimated with US food composition database with values as only approximately 66% of reported levels.

关 键 词：食物成分 铁 膳食摄入量 膳食回顾 

分 类 号：R151.4[医药卫生—营养与食品卫生学] R153.1[医药卫生—公共卫生与预防医学]