Estimating Steatosis Prevalence in Overweight and Obese Children: Comparison of Bayesian Small Area and Direct Methods
Background Often, there is no access to sufficient sample size to estimate the prevalence using the method of direct estimator in all areas. The aim of this study was to compare small area’s Bayesian method and direct method in estimating the prevalence of steatosis in obese and overweight children....
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| Format: | Article |
| Language: | English |
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Mashhad University of Medical Sciences
2016-09-01
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| Series: | International Journal of Pediatrics |
| Subjects: | |
| Online Access: | http://ijp.mums.ac.ir/article_7377_579afcab1c774f05ccb8e5b3962a86b3.pdf |
| _version_ | 1811183902594695168 |
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| author | Hamid Reza Khalkhali Shahsanam Gheibi Rasool Gharaaghaji Alireza Didarloo |
| author_facet | Hamid Reza Khalkhali Shahsanam Gheibi Rasool Gharaaghaji Alireza Didarloo |
| author_sort | Hamid Reza Khalkhali |
| collection | DOAJ |
| description | Background Often, there is no access to sufficient sample size to estimate the prevalence using the method of direct estimator in all areas. The aim of this study was to compare small area’s Bayesian method and direct method in estimating the prevalence of steatosis in obese and overweight children. Materials and Methods: In this cross-sectional study, was conducted on 150 overweight and obese children aged 2 to 15 years referred to the Children's digestive clinic of Urmia University of Medical Sciences- Iran, in 2013. After Body mass index (BMI) calculation, children with overweight and obese were assessed in terms of primary tests of obesity screening. Then children with steatosis confirmed by abdominal Ultrasonography, were referred to the laboratory for doing further tests. Steatosis prevalence was estimated by direct and Bayesian method and their efficiency were evaluated using mean-square error Jackknife method. The study data was analyzed using the open BUGS3.1.2 and R2.15.2 software. Results: The findings indicated that estimation of steatosis prevalence in children using Bayesian and direct methods were between 0.3098 to 0.493, and 0.355 to 0.560 respectively, in Health Districts; 0.3098 to 0.502, and 0.355 to 0.550 in Education Districts; 0.321 to 0.582, and 0.357 to 0.615 in age groups; 0.313 to 0.429, and 0.383 to 0.536 in sex groups. In general, according to the results, mean-square error of Bayesian estimation was smaller than direct estimation (P |
| first_indexed | 2024-04-11T13:05:36Z |
| format | Article |
| id | doaj.art-11eccb0f39b44e759d81d77e7756fe65 |
| institution | Directory Open Access Journal |
| issn | 2345-5047 2345-5055 |
| language | English |
| last_indexed | 2024-04-11T13:05:36Z |
| publishDate | 2016-09-01 |
| publisher | Mashhad University of Medical Sciences |
| record_format | Article |
| series | International Journal of Pediatrics |
| spelling | doaj.art-11eccb0f39b44e759d81d77e7756fe652022-12-22T04:22:46ZengMashhad University of Medical SciencesInternational Journal of Pediatrics2345-50472345-50552016-09-01493391339710.22038/ijp.2016.73777377Estimating Steatosis Prevalence in Overweight and Obese Children: Comparison of Bayesian Small Area and Direct MethodsHamid Reza Khalkhali0Shahsanam Gheibi1Rasool Gharaaghaji2Alireza Didarloo3Associate Professor in Biostatistics, Inpatient’s Safety Research Center, Department of Biostatistics and Epidemiology, Urmia University of Medical Sciences, Urmia, Iran.Associate Professor of Pediatric Gastroenterology, Maternal and Childhood Obesity Research Center, Urmia University of Medical Sciences, Urmia, Iran.Associate Professor in Biostatistics, Department of Health and Preventive Medicine, Urmia University of Medical Sciences, Urmia, Iran.Associate Professor in Health Education and Promotion, Solid Tumor Research Center, Department of Health and Preventive Medicine, Urmia University of Medical Sciences, Urmia, Iran.Background Often, there is no access to sufficient sample size to estimate the prevalence using the method of direct estimator in all areas. The aim of this study was to compare small area’s Bayesian method and direct method in estimating the prevalence of steatosis in obese and overweight children. Materials and Methods: In this cross-sectional study, was conducted on 150 overweight and obese children aged 2 to 15 years referred to the Children's digestive clinic of Urmia University of Medical Sciences- Iran, in 2013. After Body mass index (BMI) calculation, children with overweight and obese were assessed in terms of primary tests of obesity screening. Then children with steatosis confirmed by abdominal Ultrasonography, were referred to the laboratory for doing further tests. Steatosis prevalence was estimated by direct and Bayesian method and their efficiency were evaluated using mean-square error Jackknife method. The study data was analyzed using the open BUGS3.1.2 and R2.15.2 software. Results: The findings indicated that estimation of steatosis prevalence in children using Bayesian and direct methods were between 0.3098 to 0.493, and 0.355 to 0.560 respectively, in Health Districts; 0.3098 to 0.502, and 0.355 to 0.550 in Education Districts; 0.321 to 0.582, and 0.357 to 0.615 in age groups; 0.313 to 0.429, and 0.383 to 0.536 in sex groups. In general, according to the results, mean-square error of Bayesian estimation was smaller than direct estimation (Phttp://ijp.mums.ac.ir/article_7377_579afcab1c774f05ccb8e5b3962a86b3.pdfChildrenIranObeseoverweightSmall Area EstimationSteatosis |
| spellingShingle | Hamid Reza Khalkhali Shahsanam Gheibi Rasool Gharaaghaji Alireza Didarloo Estimating Steatosis Prevalence in Overweight and Obese Children: Comparison of Bayesian Small Area and Direct Methods International Journal of Pediatrics Children Iran Obese overweight Small Area Estimation Steatosis |
| title | Estimating Steatosis Prevalence in Overweight and Obese Children: Comparison of Bayesian Small Area and Direct Methods |
| title_full | Estimating Steatosis Prevalence in Overweight and Obese Children: Comparison of Bayesian Small Area and Direct Methods |
| title_fullStr | Estimating Steatosis Prevalence in Overweight and Obese Children: Comparison of Bayesian Small Area and Direct Methods |
| title_full_unstemmed | Estimating Steatosis Prevalence in Overweight and Obese Children: Comparison of Bayesian Small Area and Direct Methods |
| title_short | Estimating Steatosis Prevalence in Overweight and Obese Children: Comparison of Bayesian Small Area and Direct Methods |
| title_sort | estimating steatosis prevalence in overweight and obese children comparison of bayesian small area and direct methods |
| topic | Children Iran Obese overweight Small Area Estimation Steatosis |
| url | http://ijp.mums.ac.ir/article_7377_579afcab1c774f05ccb8e5b3962a86b3.pdf |
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