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Coefficients for Estimation of Nutrient Adequacy Scores of Diets of a Specific Population Group
Author(s) -
Johnson Nancy E.,
Schwinn Suzanne
Publication year - 1978
Publication title -
home economics research journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.372
H-Index - 31
eISSN - 1552-3934
pISSN - 0046-7774
DOI - 10.1177/1077727x7800700204
Subject(s) - statistics , index (typography) , mathematics , regression , regression analysis , nutrient , population , simple linear regression , linear regression , reliability (semiconductor) , estimation , econometrics , medicine , environmental health , biology , computer science , ecology , power (physics) , physics , management , quantum mechanics , world wide web , economics
An index number that described the nutrient adequacy of a diet was estimated from a simple regression equation developed from dietary information provided by a group of pregnant women. A small number of foods provided sufficient information to estimate nutrient adequacy of diets with an efficiency of from 79 to 85 percent. The simple index number was generated by multiplying number of servings from either three or four food groups by appropriate regression coefficients. Equations generated for a specific population group were shown to have high reliability since similar index numbers (r = 0.962‐0.992) were obtained when dietary data obtained during this study were inserted into an equation generated during a prior study. Results from this study suggest that simple regression equations can be generated from a specific population group and subse quently be used to assess nutrient adequacy of diets for comparable groups.