title: Relationship between body fat and BMI in a US hispanic population-based cohort study: Results from HCHS/SOL.
abstract: To evaluate the percentage of body fat (%BF)-BMI relationship, identify %BF levels corresponding to adult BMI cut points, and examine %BF-BMI agreement in a diverse Hispanic/Latino population.
  
  
  
  %BF by bioelectrical impedance analysis was corrected against %BF by (18) O dilution in 434 participants of the ancillary Hispanic Community Health Study/Study of Latinos. Corrected %BF was regressed against 1/BMI in the parent study (n = 15,261), fitting models for each age group, by sex, and Hispanic/Latino background; predicted %BF was then computed for each BMI cut point.
  
  
  
  Bioelectrical impedance analysis underestimated %BF by 8.7 ± 0.3% in women and 4.6 ± 0.3% in men (P < 0.0001). The %BF-BMI relationship was nonlinear and linear for 1/BMI. Sex- and age-specific regression parameters between %BF and 1/BMI were consistent across Hispanic/Latino backgrounds (P > 0.05). The precision of the %BF-1/BMI association weakened with increasing age in men but not women. The proportion of participants classified as nonobese by BMI but as having obesity by %BF was generally higher among women and older adults (16.4% in women vs. 12.0% in men aged 50-74 years).
  
  
  
  %BF was linearly related to 1/BMI with consistent relationship across Hispanic/Latino backgrounds. BMI cut points consistently underestimated the proportion of Hispanics/Latinos with excess adiposity.
authors.affiliation: Department of Pediatrics, USDA/ARS Children's Nutrition Research Center, Baylor College of Medicine, Houston, Texas, USA.
authors.forename: William W
authors.initials: WW
authors.lastname: Wong
authors.affiliation: Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, New York, USA.
authors.forename: Garrett
authors.initials: G
authors.lastname: Strizich
authors.affiliation: Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, New York, USA.
authors.forename: Moonseong
authors.initials: M
authors.lastname: Heo
authors.affiliation: Pennington Biomedical Research Center, Baton Rouge, Louisiana, USA.
authors.forename: Steven B
authors.identifier: 0000-0003-1127-9425
authors.initials: SB
authors.lastname: Heymsfield
authors.affiliation: Division of Epidemiology and Community Health, University of Minnesota School of Public Health, Minneapolis, Minnesota, USA.
authors.forename: John H
authors.initials: JH
authors.lastname: Himes
authors.affiliation: Department of Family Medicine and Public Health, School of Medicine, UCSD, La Jolla, California, USA.
authors.forename: Cheryl L
authors.initials: CL
authors.lastname: Rock
authors.affiliation: Department of Psychology, Behavioral Medicine Research Center, University of Miami, Coral Gables, Florida, USA.
authors.forename: Marc D
authors.initials: MD
authors.lastname: Gellman
authors.affiliation: Departments of Epidemiology and Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.|Department of Nutrition, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
authors.forename: Anna Maria
authors.initials: AM
authors.lastname: Siega-Riz
authors.affiliation: Collaborative Studies Coordinating Center, Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
authors.forename: Daniela
authors.initials: D
authors.lastname: Sotres-Alvarez
authors.affiliation: Collaborative Studies Coordinating Center, Department of Biostatistics, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA.
authors.forename: Sonia M
authors.initials: SM
authors.lastname: Davis
authors.affiliation: Graduate School of Public Health, San Diego State University, San Diego, California, USA.
authors.forename: Elva M
authors.initials: EM
authors.lastname: Arredondo
authors.affiliation: Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, Illinois, USA.
authors.forename: Linda
authors.initials: L
authors.lastname: Van Horn
authors.affiliation: Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, New York, USA.
authors.forename: Judith
authors.initials: J
authors.lastname: Wylie-Rosett
authors.affiliation: Department of Psychiatry and Surgery, College of Medicine, University of Illinois at Chicago, Chicago, Illinois, USA.
authors.forename: Lisa
authors.initials: L
authors.lastname: Sanchez-Johnsen
authors.affiliation: Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, New York, USA.
authors.forename: Robert C
authors.initials: RC
authors.lastname: Kaplan
authors.affiliation: Department of Epidemiology & Population Health, Albert Einstein College of Medicine, Bronx, New York, USA.
authors.forename: Yasmin
authors.initials: Y
authors.lastname: Mossavar-Rahmani
mesh_terms: D000273:Adipose Tissue; D000328:Adult; D000367:Age Factors; D015992:Body Mass Index; D015331:Cohort Studies; D005260:Female; D006630:Hispanic or Latino / Q000706:statistics & numerical data*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000453:epidemiology / Q000209:etiology*; D012044:Regression Analysis; D012307:Risk Factors; D012737:Sex Factors; D014481:United States / Q000453:epidemiology