传染性非典型肺炎工作群体营养状态调查 蛋白质特殊需求量及质量的表达与评价(英文)

Investigation on the nutriture of the working staff in the severe acute respiratory syndrome ward Expression and evaluation of special need of quantity and quality of protein

背景:传染性非典型肺炎隔离病区的热环境致医护人员机体蛋白质转换加速,膳食蛋白质除保证健康代谢外,还应保证特殊消耗及提升免疫功能的需要,最终达到增加机体耐力及抗传染的目的。目的:探讨传染性非典型肺炎病区医护工作群体蛋白质质和量的科学供应模式,以满足该群体特殊环境下蛋白质营养的需求。设计:横断面调查。单位:武警总医院营养科。对象:选择2003-05-01/20首批在传染性非典型肺炎隔离病区工作的健康医护人员64名,均自愿参与观察。男22名,女42名,平均年龄29岁。方法:应用称重法测定营养食谱提供和实际摄入的各类食品用量,营养系统软件分析食品中蛋白质、氨基酸含量。根据热环境蛋白质重度消耗强度1.5g /(kg·d)计算出该群体营养食谱蛋白质提供量(以男性为标准),通过该群体正常营养状态日人均估计蛋白质消耗量犤男(108.00±12.63)g,女(85.21±9.55)g犦,进行对比。并与计算机分析出的该群体实际蛋白质摄入量进行比较。应用营养食谱消化率校正记分(食谱每克蛋白质中必需氨基酸含量/中国膳食参考模式中氨基酸含量×93%,高于1.0为能满足人体必需氨基酸需要量的高质量蛋白质)评价各种必需氨基酸摄入的合理性。主要观察指标:①营养食谱蛋白质提供量及其构成。②医护工作群体蛋白质实际摄入量及其构成。结果:64名医护人员全部进入结果分析。①营养食谱设计的蛋白质提供量(日均)完全满足男、女估计蛋白质消耗量犤(157.36±10.43)g,(157.36±10.43)g;(108.00±12.63)g,(85.21±9.55)g,(t=9.344,18.278,P <0.01)犦;可以满足男、女蛋白质实际摄入量犤(157.70±58.14)g,(111.02±31.77)g,(t=-0.015,3.795,P >0.05,P <0.01)犦。②9种必需氨基酸营养食谱消化率校正记分(1.9～3.1)均>1.0,各种必需氨基酸所占百分率与中国居民膳食模式一致。结论:营养食谱中蛋白质的含量和质量均可以充分满足该群体在抗传染性非典型肺炎热环境、强体力消耗状态下的特殊需要,并能发挥最佳生物效能,是科学合理的。

BACKGROUND： The hot environmental condition of the isolated severe acute respiratory syndrome （SARS） ward makes the protein transformation of the medical personnel accelerated. The dietary protein should make up the special consumption and improve the immunity in addition to guaranteeing the normal metabolism for the purpose to promote the organic endurance and resist the communicable disease. OBJECTIVE： To study the scientific mode of quality and quantity of protein supply for the medical staff working in the SARS ward. DESIGN： A cross section analysis. SETTING： Trophological Department, General Hospital of Chinese People＇s Armed Police Forces. PARTICIPANTS： The 64 healthy doctors and nurses, 22 males and 42 females, aged 29 averagely, worked in the SARS ward from May 1st to 20th 2003, were the volunteers to join the observation.METHODS： The weighing method was applied to measure the quantity of various food supplied by recipe and actually taken and the nutrition software was used to analyze the quantity of protein and amino acid contained in the food. The quantity of protein supply （taking male as standard） calculated according to the heavy consumption, 1.5 g/kg·d, in the hot environment was compared with the estimated consumption, male （108.00±12.63） g and female （85.21±9.55） g, and with the actual intake analyzed by computer. The corrected scoring of digestibility was employed to evaluate the reasonability of intake of various essential amino acids. The quantity of essential amino acids contained in every gram of protein of recipe/the amino acids contained in Reference Mode of Chinese Food × 93% being higher than 1.0 was said to be the quality protein meeting the need of human body. MAIN OUTCOME MEASURES： ①The quantity and composition of protein supplied by the recipe. ②The quantity and composition of protein actually taken by the working staff. RESULTS： All of the 64 medical working staff entered the result analysis. ①The protein supply of recipe （daily average） could totally meet the need of estimated consumption of male and female staff [（157.36±10.43） g, （108.00±12.63） g, （85.21±9.55） g, t=9.344, 18.278, P 〈 0.011 and the need of actual intake [（157.70±58.14） g, （111.02±31.77） g, t= -0.015, 3.795, P 〉 0.05, P 〈 0.01]. ②The corrected scores of 9 amino acids of digestibility, （1.9-3.1）, were all higher than 1.0 and the percentage of amino acids was in accordance with the food mode of Chinese people. CONCLUSION： The protein quantity and quality of recipe can meet the special need of medical staff working in the hot environment with the heavy physical consumption in the SARS ward and can produce the best biological effect, being scientific.