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Changes in Obesity Odds Ratio among Iranian Adults, since 2000: Quadratic Inference Functions Method

Background. Monitoring changes in obesity prevalence by risk factors is relevant to public health programs that focus on reducing or preventing obesity. The purpose of this paper was to study trends in obesity odds ratios (ORs) for individuals aged 20 years and older in Iran by using a new statistic...

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Autores principales: Bakhshi, Enayatollah, Etemad, Koorosh, Seifi, Behjat, Mohammad, Kazem, Biglarian, Akbar, Koohpayehzadeh, Jalil
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi Publishing Corporation 2016
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5075634/
https://www.ncbi.nlm.nih.gov/pubmed/27803729
http://dx.doi.org/10.1155/2016/7101343
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author Bakhshi, Enayatollah
Etemad, Koorosh
Seifi, Behjat
Mohammad, Kazem
Biglarian, Akbar
Koohpayehzadeh, Jalil
author_facet Bakhshi, Enayatollah
Etemad, Koorosh
Seifi, Behjat
Mohammad, Kazem
Biglarian, Akbar
Koohpayehzadeh, Jalil
author_sort Bakhshi, Enayatollah
collection PubMed
description Background. Monitoring changes in obesity prevalence by risk factors is relevant to public health programs that focus on reducing or preventing obesity. The purpose of this paper was to study trends in obesity odds ratios (ORs) for individuals aged 20 years and older in Iran by using a new statistical methodology. Methods. Data collected by the National Surveys in Iran, from 2000 through 2011. Since responses of the member of each cluster are correlated, the quadratic inference functions (QIF) method was used to model the relationship between the odds of obesity and risk factors. Results. During the study period, the prevalence rate of obesity increased from 12% to 22%. By using QIF method and a model selection criterion for performing stepwise regression analysis, we found that while obesity prevalence generally increased in both sexes, all ages, all employment, residence, and smoking levels, it seems to have changes in obesity ORs since 2000. Conclusions. Because obesity is one of the main risk factors for many diseases, awareness of the differences by factors allows development of targets for prevention and early intervention.
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spelling pubmed-50756342016-11-01 Changes in Obesity Odds Ratio among Iranian Adults, since 2000: Quadratic Inference Functions Method Bakhshi, Enayatollah Etemad, Koorosh Seifi, Behjat Mohammad, Kazem Biglarian, Akbar Koohpayehzadeh, Jalil Comput Math Methods Med Research Article Background. Monitoring changes in obesity prevalence by risk factors is relevant to public health programs that focus on reducing or preventing obesity. The purpose of this paper was to study trends in obesity odds ratios (ORs) for individuals aged 20 years and older in Iran by using a new statistical methodology. Methods. Data collected by the National Surveys in Iran, from 2000 through 2011. Since responses of the member of each cluster are correlated, the quadratic inference functions (QIF) method was used to model the relationship between the odds of obesity and risk factors. Results. During the study period, the prevalence rate of obesity increased from 12% to 22%. By using QIF method and a model selection criterion for performing stepwise regression analysis, we found that while obesity prevalence generally increased in both sexes, all ages, all employment, residence, and smoking levels, it seems to have changes in obesity ORs since 2000. Conclusions. Because obesity is one of the main risk factors for many diseases, awareness of the differences by factors allows development of targets for prevention and early intervention. Hindawi Publishing Corporation 2016 2016-10-10 /pmc/articles/PMC5075634/ /pubmed/27803729 http://dx.doi.org/10.1155/2016/7101343 Text en Copyright © 2016 Enayatollah Bakhshi et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Bakhshi, Enayatollah
Etemad, Koorosh
Seifi, Behjat
Mohammad, Kazem
Biglarian, Akbar
Koohpayehzadeh, Jalil
Changes in Obesity Odds Ratio among Iranian Adults, since 2000: Quadratic Inference Functions Method
title Changes in Obesity Odds Ratio among Iranian Adults, since 2000: Quadratic Inference Functions Method
title_full Changes in Obesity Odds Ratio among Iranian Adults, since 2000: Quadratic Inference Functions Method
title_fullStr Changes in Obesity Odds Ratio among Iranian Adults, since 2000: Quadratic Inference Functions Method
title_full_unstemmed Changes in Obesity Odds Ratio among Iranian Adults, since 2000: Quadratic Inference Functions Method
title_short Changes in Obesity Odds Ratio among Iranian Adults, since 2000: Quadratic Inference Functions Method
title_sort changes in obesity odds ratio among iranian adults, since 2000: quadratic inference functions method
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5075634/
https://www.ncbi.nlm.nih.gov/pubmed/27803729
http://dx.doi.org/10.1155/2016/7101343
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