生物工程外文文獻(xiàn)及翻譯--美國(guó)飲食中的水果和蔬菜數(shù)據(jù)來自nhanes 11調(diào)查

1、本科畢業(yè)設(shè)計(jì)外文文獻(xiàn)及譯文文獻(xiàn)、資料題目：Fruit and Vegetables in the American Diet: Data fromthe NHANES 11 Survey文獻(xiàn)、資料來源： American Journal of Public Health 文獻(xiàn)、資料發(fā)表（出版）日期：1990院 （部）： 市政與環(huán)境工程學(xué)院專 業(yè)： 生物工程班 級(jí)： 生物 092姓 名： 吳世英學(xué) 號(hào)： 2

2、009041150指導(dǎo)教師： 張超翻譯日期： 2013.6.6山東建筑大學(xué)畢業(yè)設(shè)計(jì)外文文獻(xiàn)及譯文1Human Services (DHHS) recommend as part of their food guidance system that the daily diet include two to three servings of fruit and three to five servings of vegetables.4

3、5 These specific recommendations are in the context of general recommendations for a diet that meets nutrient requirements, does not include excessive amounts of fat (in particular saturated fats), and is consistent with

4、 maintaining desirable weight. It is important therefore to determine what relation increased fruit and vegetable consumption might have, not only to intake of obviously related nutrients such as vitamins A and C but als

5、o to fat intake and maintenance of appropriate body weight. In the NHANES II data, collected between 1976 and 1980, it is possible to examine these relationships in self-selected diets that were actually consumed during

6、a 24-hour period by a representative sample of US adults.The article mentioned above' described the proportions of the US population that consumed any amount of a given food, however large or small; no attempt was ma

7、de to determine the number of servings consumed. In the present inquiry we estimate the number of servings consumed, taking portion size into account. We also examine the intake of calories, fat, fiber, and vitamins A an

8、d C in the diets of persons consuming various numbers of servings of fruit and vegetables. While it is obvious that intake of vitamins A and C would increase with increasing numbers of servings, the relative contribution

9、 of fruit versus vegetables is not well known, nor is the nutrient intake actually achieved in self-selected diets. Similarly, the dietary fiber intake contained in diets including multiple servings of fruit and vegetabl

10、es may be inadequately appreciated by the general public.MethodsThe NHANES II survey was conducted by the National Center for Health Statistics between 1976 and 1980.6A highly stratified multi-stage probability design wa

11、s used to obtain a representative sample of the civilian no institutionalized population, ages six months to 74 years; we report on 10,313 White and 1,335 Black adults ages 19 to 74. We excluded other races because of sm

12、all numbers, as well as imputed, unreliable, or surrogate data. Results are based on weighted data, permitting inference about the total Black and White noninstitutionalized US population.7 Group means and standard error

13、s were calculated using software appropriate for complex sample survey data.8 Standard errors are frequently large for Blacks, due to their small number in the survey. Therefore, results for Blacks should be viewed with