Buscemi Joanna, Pugach Oksana, Springfield Sparkle, Jang Jiyeong, Tussing-Humphreys Lisa, Schiffer Linda, Stolley Melinda R, Fitzgibbon Marian L
DePaul University, 2219 N Kenmore Ave, Chicago, IL 60614, United States.
University of Illinois at Chicago, United States.
Eat Behav. 2018 Apr;29:48-53. doi: 10.1016/j.eatbeh.2018.02.005. Epub 2018 Feb 16.
African-American women are at increased risk for obesity, and therefore it is important to identify dietary factors that have the potential to prevent weight gain within this population. The purpose of the current study was to examine associations between daily fiber intake and Body Mass Index (BMI) over the course of an 18-month weight loss intervention for African-American women.
Anthropometric measures and the Block Food Frequency Questionnaire were administered at baseline, 6-month, and 18-month follow-up between 2008 and 2010. A mixed-effects linear regression model with random intercept and time slope was used to model associations between fiber consumption and BMI controlling for time trend.
Associations between fiber consumption and BMI were significantly different over time (β̂=-0.07,p-value=0.003). There was no association between fiber intake and BMI at baseline; however, there was a significant inverse relation between fiber consumption and BMI at 6 months, and the association was even stronger at 18 months.
Results from this study suggest that dietary fiber consumption may be particularly important within weight loss interventions tailored for African-American women.
非裔美国女性肥胖风险较高，因此，识别有可能防止该人群体重增加的饮食因素非常重要。本研究的目的是在一项针对非裔美国女性的为期18个月的减肥干预过程中，研究每日纤维摄入量与体重指数（BMI）之间的关联。
在2008年至2010年期间，于基线、6个月和18个月随访时进行人体测量和布洛克食物频率问卷调查。使用具有随机截距和时间斜率的混合效应线性回归模型来模拟纤维摄入量与控制时间趋势的BMI之间的关联。
纤维摄入量与BMI之间的关联随时间有显著差异（β̂=-0.07，p值=0.003）。基线时纤维摄入量与BMI之间无关联；然而，6个月时纤维摄入量与BMI之间存在显著负相关，且在18个月时这种关联更强。
本研究结果表明，在为非裔美国女性量身定制的减肥干预措施中，膳食纤维的摄入可能尤为重要。
