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[Reference values of body fat indices in Chinese children aged 6-9 years old in Guangzhou]. 2018

Yuanhuan Wei, and Zheqing Zhang, and Jue Wang, and Yongxin Chen, and Jiahua Zhang, and Kwame Amakye William, and Limei Mao
Department of Nutrition and Food Hygiene, School of Public Health, Southern Medical University, Guangzhou 510515, China.

OBJECTIVE To establish normal reference values of total and segmental body fat distribution of children aged 6-9 years old in Guangzhou, which can be used for abnormal fat accumulation surveillance. METHODS A total of 456 children aged 6-9 years old were enrolled between December, 2015 to March, 2017 in Guangzhou, China. Body composition was measured by dual-energy X-ray absorptiometry( DXA). The LMS regression method was used to construct age-and gender-specific smooth percentile curves of total body fat mass( TBFM), percentage of total body fat( % TBF), android fat mass, gynoid fat mass, appendicular fat mass( AFM), percentage android fat, percentage gynoid fat, percentage appendicular fat mass( % AFM) and android/gynoid ratio. The 5th to 85th, 85th and 95th centiles of body fat indexes were applied to define "normal", "overfat", and "obese"status. RESULTS Linear trend test showed that except for total body fat percentage( % TBF) in girls, total body fat mass( TBFM), segmental body fat mass and % TBF increased significantly with age in both genders. The reference values of TBFM for boys in each age group were 3. 87-6. 04, 3. 72-7. 74, 3. 82-9. 85, 4. 30-13. 35 kg, respectively, and for girls were 3. 86-7. 76, 3. 97-8. 50, 4. 23-9. 46, 4. 78-10. 74 kg, respectively. The corresponding values for the % TBF were 20. 07%-28. 84%, 18. 50%-30. 32%, 17. 93%-31. 97%, 18. 10%-34. 81% in boys, and20. 91%-34. 14%, 20. 64%-34. 60%, 20. 18%-33. 99%, 20. 28%-34. 40% in girls, respectively. In terms of android/gynoid ratio, the values were 0. 62-0. 78, 0. 58-0. 83, 0. 58-0. 88, 0. 57-0. 93 for boys, and 0. 50-0. 76, 0. 54-0. 81, 0. 57-0. 85, 0. 50-0. 82 for girls, respectively. CONCLUSIONS The data provided normal reference range for assessing body fat distribution in children aged 6-9 years in Guangzhou, China.

UI MeSH Term Description Entries
D008297 Male Males
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D001823 Body Composition The relative amounts of various components in the body, such as percentage of body fat. Body Compositions,Composition, Body,Compositions, Body
D002648 Child A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL. Children
D002681 China A country spanning from central Asia to the Pacific Ocean. Inner Mongolia,Manchuria,People's Republic of China,Sinkiang,Mainland China
D003430 Cross-Sectional Studies Studies in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with LONGITUDINAL STUDIES which are followed over a period of time. Disease Frequency Surveys,Prevalence Studies,Analysis, Cross-Sectional,Cross Sectional Analysis,Cross-Sectional Survey,Surveys, Disease Frequency,Analyses, Cross Sectional,Analyses, Cross-Sectional,Analysis, Cross Sectional,Cross Sectional Analyses,Cross Sectional Studies,Cross Sectional Survey,Cross-Sectional Analyses,Cross-Sectional Analysis,Cross-Sectional Study,Cross-Sectional Surveys,Disease Frequency Survey,Prevalence Study,Studies, Cross-Sectional,Studies, Prevalence,Study, Cross-Sectional,Study, Prevalence,Survey, Cross-Sectional,Survey, Disease Frequency,Surveys, Cross-Sectional
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000273 Adipose Tissue Specialized connective tissue composed of fat cells (ADIPOCYTES). It is the site of stored FATS, usually in the form of TRIGLYCERIDES. In mammals, there are two types of adipose tissue, the WHITE FAT and the BROWN FAT. Their relative distributions vary in different species with most adipose tissue being white. Fatty Tissue,Body Fat,Fat Pad,Fat Pads,Pad, Fat,Pads, Fat,Tissue, Adipose,Tissue, Fatty
D015502 Absorptiometry, Photon A noninvasive method for assessing BODY COMPOSITION. It is based on the differential absorption of X-RAYS (or GAMMA RAYS) by different tissues such as bone, fat and other soft tissues. The source of (X-ray or gamma-ray) photon beam is generated either from radioisotopes such as GADOLINIUM 153, IODINE 125, or Americanium 241 which emit GAMMA RAYS in the appropriate range; or from an X-ray tube which produces X-RAYS in the desired range. It is primarily used for quantitating BONE MINERAL CONTENT, especially for the diagnosis of OSTEOPOROSIS, and also in measuring BONE MINERALIZATION. Absorptiometry, X-Ray,Dual-Photon Absorptiometry,Photodensitometry, X-Ray,Photon Absorptiometry,Single-Photon Absorptiometry,X-Ray Absorptiometry,Absorptiometry, Dual X-Ray,Absorptiometry, Dual-Energy Radiographic,Absorptiometry, Dual-Energy X-Ray,DEXA Scan,DPX Absorptiometry,DXA Scan,Densitometry, X-Ray,Densitometry, Xray,Dual X-Ray Absorptiometry,Dual-Energy Radiographic Absorptiometry,Dual-Energy X-Ray Absorptiometry,Dual-Energy X-Ray Absorptiometry Scan,Radiographic Absorptiometry, Dual-Energy,X-Ray Absorptiometry, Dual-Energy,X-Ray Photodensitometry,Absorptiometries, DPX,Absorptiometry, DPX,Absorptiometry, Dual Energy Radiographic,Absorptiometry, Dual Energy X Ray,Absorptiometry, Dual X Ray,Absorptiometry, Dual-Photon,Absorptiometry, Single-Photon,Absorptiometry, X Ray,DEXA Scans,DXA Scans,Densitometry, X Ray,Dual Energy Radiographic Absorptiometry,Dual Energy X Ray Absorptiometry,Dual Energy X Ray Absorptiometry Scan,Dual Photon Absorptiometry,Dual X Ray Absorptiometry,Photodensitometry, X Ray,Radiographic Absorptiometry, Dual Energy,Scan, DEXA,Scan, DXA,Scans, DEXA,Scans, DXA,Single Photon Absorptiometry,X Ray Absorptiometry,X Ray Absorptiometry, Dual Energy,X Ray Photodensitometry,X-Ray Absorptiometry, Dual,X-Ray Densitometry,Xray Densitometry

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