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Validation of equations and proposed reference values to estimate fat mass in Chilean university students [Validación de ecuaciones y propuesta de valores referenciales para estimar la masa grasa de jóvenes universitarios chilenos]

dc.contributor.authorGómez Campos R.
dc.contributor.authorPacheco Carrillo J.
dc.contributor.authorAlmonacid Fierro A.
dc.contributor.authorUrra Albornoz C.
dc.contributor.authorCossío-Bolaños M.
dc.date.accessioned2020-09-02T22:19:52Z
dc.date.available2020-09-02T22:19:52Z
dc.date.issued2018
dc.identifier10.1016/j.endinu.2017.11.008
dc.identifier.citation65, 3, 156-163
dc.identifier.issn25300164
dc.identifier.urihttps://hdl.handle.net/20.500.12728/4788
dc.descriptionObjectives: (i) To propose regression equations based on anthropometric measures to estimate fat mass (FM) using dual energy X-ray absorptiometry (DXA) as reference method, and (ii) to establish population reference standards for equation-derived FM. Material and methods: A cross-sectional study on 6,713 university students (3,354 males and 3,359 females) from Chile aged 17.0 to 27.0 years. Anthropometric measures (weight, height, waist circumference) were taken in all participants. Whole body DXA was performed in 683 subjects. A total of 478 subjects were selected to develop regression equations, and 205 for their cross-validation. Data from 6,030 participants were used to develop reference standards for FM. Equations were generated using stepwise multiple regression analysis. Percentiles were developed using the LMS method. Results: Equations for men were: (i) FM = −35,997.486 + 232.285 * Weight + 432.216 * CC (R2 = 0.73, SEE = 4.1); (ii) FM = −37,671.303 + 309.539 * Weight + 66,028.109 * ICE (R2 = 0.76, SEE = 3.8), while equations for women were: (iii) FM = −13,216.917 + 461,302 * Weight + 91.898 * CC (R2 = 0.70, SEE = 4.6), and (iv) FM = −14,144.220 + 464.061 * Weight + 16,189.297 * ICE (R2 = 0.70, SEE = 4.6). Percentiles proposed included p10, p50, p85, and p95. Conclusion: The developed equations provide valid and accurate estimation of FM in both sexes. The values obtained using the equations may be analyzed from percentiles that allow for categorizing body fat levels by age and sex. © 2017 SEEN y SED
dc.language.isoen
dc.language.isoes
dc.publisherElsevier Doyma
dc.subjectEquations
dc.subjectFat mass
dc.subjectPercentiles
dc.subjectUniversity students
dc.subjectadolescent
dc.subjectadult
dc.subjectarticle
dc.subjectbody fat
dc.subjectChile
dc.subjectcross-sectional study
dc.subjectDNA polymorphism
dc.subjectdual energy X ray absorptiometry
dc.subjectfat mass
dc.subjectfemale
dc.subjectheight
dc.subjecthuman
dc.subjecthuman experiment
dc.subjectmajor clinical study
dc.subjectmale
dc.subjectmultiple regression
dc.subjectreference value
dc.subjectremission
dc.subjectstandard
dc.subjectuniversity student
dc.subjectvalidation process
dc.subjectwaist circumference
dc.subjectbody height
dc.subjectbody weight
dc.subjectmathematics
dc.subjectnonparametric test
dc.subjectobesity
dc.subjectphoton absorptiometry
dc.subjectreference value
dc.subjectregression analysis
dc.subjectuniversity
dc.subjectvalidation study
dc.subjectyoung adult
dc.subjectAbsorptiometry, Photon
dc.subjectAdiposity
dc.subjectAdolescent
dc.subjectAdult
dc.subjectBody Height
dc.subjectBody Weight
dc.subjectChile
dc.subjectCross-Sectional Studies
dc.subjectFemale
dc.subjectHumans
dc.subjectMale
dc.subjectMathematics
dc.subjectReference Values
dc.subjectRegression Analysis
dc.subjectStatistics, Nonparametric
dc.subjectUniversities
dc.subjectWaist Circumference
dc.subjectYoung Adult
dc.titleValidation of equations and proposed reference values to estimate fat mass in Chilean university students [Validación de ecuaciones y propuesta de valores referenciales para estimar la masa grasa de jóvenes universitarios chilenos]
dc.typeArticle


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