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Study suggests junk food in schools doesn't cause weight gain among children
Date:1/17/2012

WASHINGTON, DC, January 17, 2012 While the percentage of obese children in the United States tripled between the early 1970s and the late 2000s, a new study suggests thatat least for middle school studentsweight gain has nothing to do with the candy, soda, chips, and other junk food they can purchase at school.

"We were really surprised by that result and, in fact, we held back from publishing our study for roughly two years because we kept looking for a connection that just wasn't there," said Jennifer Van Hook, a Professor of Sociology and Demography at Pennsylvania State University and lead author of the study, which appears in the January issue of Sociology of Education.

The study relies on data from the Early Childhood Longitudinal Study, Kindergarten Class of 1998-1999, which follows a nationally representative sample of students from the fall of kindergarten through the spring of eighth grade (the 1998-1999 through 2006-2007 schools years). Van Hook and her coauthor Claire E. Altman, a sociology and demography doctoral student at Pennsylvania State University, used a subsample of 19,450 children who attended school in the same county in both fifth and eighth grades (the 2003-2004 and the 2006-2007 school years).

The authors found that 59.2 percent of fifth graders and 86.3 percent of eighth graders in their study attended schools that sold junk food. But, while there was a significant increase in the percentage of students who attended schools that sold junk food between fifth and eighth grades, there was no rise in the percentage of students who were overweight or obese. In fact, despite the increased availability of junk food, the percentage of students who were overweight or obese actually decreased from fifth grade to eighth grade, from 39.1 percent to 35.4 percent.

"There has been a great deal of focus in the media on how schools make a lot of money from the sale of junk food to students, and on how s
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Contact: Daniel Fowler
pubinfo@asanet.org
202-527-7885
American Sociological Association
Source:Eurekalert

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