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Abdominal adiposity change in white and black midlife women: The study of women's health across the nation
Author(s) -
Kazlauskaite Rasa,
Innola Pilvi,
Karavolos Kelly,
Dugan Sheila A.,
Avery Elizabeth F.,
Fattout Yacob,
KarvonenGutierrez Carrie,
Janssen Imke,
Powell Lynda H.
Publication year - 2015
Publication title -
obesity
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.438
H-Index - 199
eISSN - 1930-739X
pISSN - 1930-7381
DOI - 10.1002/oby.21350
Subject(s) - medicine , women's health initiative , black women , postmenopausal women , cohort , body mass index , adipose tissue , cohort study , abdominal fat , demography , gynecology , gerontology , obesity , endocrinology , gender studies , sociology
Objective The principal objective of this investigation was to compare the naturalistic intra‐abdominal adipose tissue (IAAT) change among black and white women during midlife. Methods A cohort of 222 (56%) white and 171 (44%) black midlife women were investigated in the Fat Patterning Study at the Chicago site of the Study of Women's Health Across the Nation. The subjects' total body fat was assessed by dual‐energy X‐ray absorptiometry and IAAT by a planimetric computed tomography (at the level of L 4 ‐L 5 ) annually over up to 4 years. Results The total body fat at initial evaluation was higher in black women (45.1% ± 8.2%) when compared with white women (41.3% ± 8.7%, P < 0.001) and did not significantly change over the longitudinal follow‐up. No significant racial differences were found in the mean annualized gain of IAAT (4.4% ± 0.5%) in models adjusted for total body fat, initial IAAT, age, race, time and race interaction, physical activity, depressive symptoms, menopausal status, and menopausal hormone therapy. Conclusions During a naturalistic observation, black and white midlife women had similar abdominal fat gain adjusted for differences in baseline adiposity. These data inform future research aimed to prevent IAAT gain during the critical midlife period of rising cardiovascular risk.