TY - JOUR
T1 - Relationship between body fat and BMI in a US hispanic population-based cohort study
T2 - Results from HCHS/SOL
AU - Wong, William W.
AU - Strizich, Garrett
AU - Heo, Moonseong
AU - Heymsfield, Steven B.
AU - Himes, John H.
AU - Rock, Cheryl L.
AU - Gellman, Marc D.
AU - Siega-Riz, Anna Maria
AU - Sotres-Alvarez, Daniela
AU - Davis, Sonia M.
AU - Arredondo, Elva M.
AU - Van Horn, Linda
AU - Wylie-Rosett, Judith
AU - Sanchez-Johnsen, Lisa
AU - Kaplan, Robert C.
AU - Mossavar-Rahmani, Yasmin
N1 - Publisher Copyright:
© 2016 The Obesity Society
PY - 2016/7/1
Y1 - 2016/7/1
N2 - Objective: 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. Methods: %BF by bioelectrical impedance analysis was corrected against %BF by 18O 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. Results: 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). Conclusions: %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.
AB - Objective: 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. Methods: %BF by bioelectrical impedance analysis was corrected against %BF by 18O 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. Results: 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). Conclusions: %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.
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U2 - 10.1002/oby.21495
DO - 10.1002/oby.21495
M3 - Article
C2 - 27184359
AN - SCOPUS:84976615233
SN - 1930-7381
VL - 24
SP - 1561
EP - 1571
JO - Obesity
JF - Obesity
IS - 7
ER -