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Eating behaviors and body weight in preadolescents classified by sensitivity to 6-n-propylthiouracil: a follow-up study
Descriptive
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Title
Eating behaviors and body weight in preadolescents classified by sensitivity to 6-n-propylthiouracil: a follow-up study
Name
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Nolen
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Katherine A.
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Katherine A. Nolen
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author
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Beverly
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Advisory Committee
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Beverly J Tepper
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chair
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Loredana
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Advisory Committee
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Loredana Quadro
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internal member
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Daun
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Henryk
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Advisory Committee
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Henryk Daun
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dissertation committee member
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Hoffman
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Daniel
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Advisory Committee
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Daniel Hoffman
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outside member
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Rutgers University
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Graduate School - New Brunswick
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school
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theses
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DateCreated
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2008
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2008-05
Language
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English
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electronic
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x, 122 pages
Abstract
Overweight in children is a problem of rising significance as obesity in America becomes more widespread. Understanding factors affecting the establishment of eating behaviors in children can potentially mitigate development of adiposity. This study investigated the influence of genetic sensitivity to the bitterness of 6-n-propylthiouracil (PROP), environment and psychosocial factors on change in weight status from preschool to preadolescence. Children who originally participated in taste studies as preschoolers were identified and re-tested as preadolescents. Seventy-three children and their mothers were screened for PROP taster status and answered a questionnaire measuring dietary restraint and disinhibition. Children additionally gave three 24-hour recalls, and wore an activity monitor for 72hours. Data from the diet recalls were analyzed by nutrient composition as well as by USDA Food Group servings. For the results, phenotype of PROP taster status was stable since preschool, being satisfactorily reliable for test-retest (Cohen's Kappa >0.7). There were no significant differences among PROP taster groups for current BMI percentile or change in BMI percentile since preschool by Univariate analyses. Multivariate models provided greater insight since it provided the ability to control for other measurable forms of variance. Both Multiple Linear Regression and Hierarchical Regression showed that the single most influential factor for predicting current weight status was preschool weight status. In addition, dietary restraint was a significant positive predictor as was the interaction between gender and PROP taster status. Within females, PROP sensitivity was a significant positive predictor for body weight, whereas this was not true for males. However, subjects had a lower incidence of overweight than the national average and tended to have high physical activity. Thus, in order to elucidate the true impact of PROP sensitivity on eating behaviors, further studies should investigate the effect of PROP taster status on body weight in female children, particularly in an overweight population.
Note
(type = degree)
M.S.
Note
(type = bibliography)
Includes bibliographical references (p. 71-79).
Subject
(ID = SUBJ1);
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Topic
Food Science
Subject
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Topic
Obesity in children
Subject
(ID = SUBJ3);
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Topic
Food--Sensory evaluation
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Graduate School - New Brunswick Electronic Theses and Dissertations
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rucore19991600001
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http://hdl.rutgers.edu/1782.2/rucore10001600001.ETD.17366
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ETD_967
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NjNbRU
Identifier
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doi:10.7282/T3FJ2H4D
Genre
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ETD graduate
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Rights
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The author owns the copyright to this work.
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Copyright protected
Availability
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Open
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Name
Katherine Nolen
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Copyright holder
Affiliation
Rutgers University. Graduate School - New Brunswick
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Non-exclusive ETD license
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Author Agreement License
Detail
I hereby grant to the Rutgers University Libraries and to my school the non-exclusive right to archive, reproduce and distribute my thesis or dissertation, in whole or in part, and/or my abstract, in whole or in part, in and from an electronic format, subject to the release date subsequently stipulated in this submittal form and approved by my school. I represent and stipulate that the thesis or dissertation and its abstract are my original work, that they do not infringe or violate any rights of others, and that I make these grants as the sole owner of the rights to my thesis or dissertation and its abstract. I represent that I have obtained written permissions, when necessary, from the owner(s) of each third party copyrighted matter to be included in my thesis or dissertation and will supply copies of such upon request by my school. I acknowledge that RU ETD and my school will not distribute my thesis or dissertation or its abstract if, in their reasonable judgment, they believe all such rights have not been secured. I acknowledge that I retain ownership rights to the copyright of my work. I also retain the right to use all or part of this thesis or dissertation in future works, such as articles or books.
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