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- Title
Relationship between body fat and BMI in a US hispanic population-based cohort study: Results from HCHS/SOL.
- Authors
Wong, William W.; Strizich, Garrett; Heo, Moonseong; Heymsfield, Steven B.; Himes, John H.; Rock, Cheryl L.; Gellman, Marc D.; Siega‐Riz, Anna Maria; Sotres‐Alvarez, Daniela; Davis, Sonia M.; Arredondo, Elva M.; Van Horn, Linda; Wylie‐Rosett, Judith; Sanchez‐Johnsen, Lisa; Kaplan, Robert C.; Mossavar‐Rahmani, Yasmin
- Abstract
<bold>Objective: </bold>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.<bold>Methods: </bold>%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.<bold>Results: </bold>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).<bold>Conclusions: </bold>%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.
- Subjects
UNITED States; OBESITY; BODY mass index; FAT; ANTHROPOMETRY; HEALTH of Hispanic Americans; STATISTICS on Hispanic Americans; ADIPOSE tissues; AGE distribution; LONGITUDINAL method; REGRESSION analysis; RESEARCH funding; SEX distribution
- Publication
Obesity (19307381), 2016, Vol 24, Issue 7, p1561
- ISSN
1930-7381
- Publication type
journal article
- DOI
10.1002/oby.21495