Document Detail


Use of Data Mining to Reveal Body Mass Index (BMI): Patterns Among Pennsylvania Schoolchildren, Pre-K to Grade 12.
MedLine Citation:
PMID:  23331267     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
BACKGROUND: Health eTools for Schools was developed to assist school nurses with routine entries, including height and weight, on student health records, thus providing a readily accessible data base. Data-mining techniques were applied to this database to determine if clinically significant results could be generated.
METHODS: Body mass index (BMI) data collected and entered in eTools by school nurses from 657,068 students attending 1156 schools in 49 of 67 Pennsylvania counties during 2005-2009 were analyzed. Students in each BMI category were sorted; regression was used to model mean and percentage trends. A chi-square test of individually matched BMI percentages was computed and migration across normal, overweight, and obese states determined.
RESULTS: The highest percentage of obese students occured in middle school. The mean trends for obesity and overweight had increasing slopes of 0.189 and 0.227, respectively; with regression slope for overweight >59%. Within groups, substantial percentages of individually matched BMIs changed significantly (p < .0001) over 2 years, migrating between normal weight, overweight, and obese. A comparison of 2009 measured BMI for grades 9-12 from eTools with 2009 Pennsylvania Youth Risk Behavior Survey self-reported BMI yielded substantial diferences.
CONCLUSION: A pattern of increasing BMI for elementary students with a corresponding decrease among middle and high school students emerged. The means trends for both overweight and obesity were greater in 2009 than in 2005, increasing steadily to 2008 and slightly declining to 2009. The dominant overall pattern flows from overweight to obese. If continued unabated, percentage of students who are obese will dominate over time.
Authors:
Ahmed H Youssefagha; David K Lohrmann; Wasantha P Jayawardene
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of school health     Volume:  83     ISSN:  1746-1561     ISO Abbreviation:  J Sch Health     Publication Date:  2013 Feb 
Date Detail:
Created Date:  2013-01-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0376370     Medline TA:  J Sch Health     Country:  United States    
Other Details:
Languages:  eng     Pagination:  85-92     Citation Subset:  IM; N    
Copyright Information:
© 2013, American School Health Association.
Affiliation:
Assistant Professor, (ahmyouss@indiana.edu), Department of Applied Health Science, Indiana University, HPER Bldg 116, 1025 E 7th Street, Bloomington, IN 47405.
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