Changes in waist circumference and body mass index in the US CARDIA cohort: fixed-effects associations with self-reported experiences of racial/ethnic discrimination.
Changes in waist circumference and body mass index in the US CARDIA cohort: fixed-effects associations with self-reported experiences of racial/ethnic discrimination.
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美国Cardia队列中的腰围和体重指数的变化：与种族/种族歧视的自我报告经历的固定效应关联。
DOI：
10.1017/s0021932012000429
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发表时间：
2013-03
影响因子：
1.5
通讯作者：
Gortmaker, Steven L.
中科院分区：
文献类型：
--
作者：
Cunningham, Timothy J.;Berkman, Lisa F.;Kawachi, Ichiro;Jacobs, David R., Jr.;Seeman, Teresa E.;Kiefe, Catarina I.;Gortmaker, Steven L.
先前的研究调查了自我报告的种族/民族歧视经历与肥胖之间的关系，结果好坏参半，而且主要是横断面的。这项研究测试了一个假设，即在八年内，黑人和白人女性和男性中，自我报告的种族/民族歧视经历的增加预示着腰围和体重指数的增加。在种族/民族和性别分层模型中，本研究使用SAS统计软件中的固定效应回归方法，检验了自我报告的种族/民族歧视经历的变化是否预测了腰围和体重指数随时间的变化，为测量和未测量的时不变协变量提供了控制。从1992-93年到2000-01年，843名黑人女性（75% - 73%）、601名黑人男性（80% - 77%）、893名白人女性（30% - 23%）和856名白人男性（28% - 23%）自我报告的种族/民族歧视经历有所减少。在固定效应回归模型中，控制了所有时不变协变量、社会可取性偏差、教育和性别（仅限女性）随时间的变化，黑人女性自我报告的种族/民族歧视经历的增加与腰围（b=1.09, 95% CI: 0.00-2.19, p=0.05）和体重指数（b=0.67, 95% CI: 0.19-1.16, p=0.007）的增加显著相关。在黑人男性和白人女性和男性之间没有观察到关联。这些发现表明，随着时间的推移，黑人女性自我报告的种族/民族歧视经历的增加可能与腰围和体重指数的增加有关。
Prior studies examining the association between self-reported experiences of racial/ethnic discrimination and obesity have had mixed results and primarily been cross-sectional. This study tests the hypothesis that an increase in self-reported experiences of racial/ethnic discrimination predicts gains in waist circumference and body mass index in Black and White women and men over eight years. In race/ethnicity- and gender-stratified models, this study examined whether change in self-reported experiences of racial/ethnic discrimination predicts changes in waist circumference and body mass index over time using a fixed-effect regression approach in SAS statistical software, providing control for both measured and unmeasured time-invariant covariates. Between 1992–93 and 2000–01, self-reported experiences of racial/ethnic discrimination decreased among 843 Black women (75% to 73%), 601 Black men (80% to 77%), 893 White women (30% to 23%), and 856 White men (28% to 23%). In fixed-effect regression models, controlling for all time-invariant covariates, social desirability bias, and changes in education and parity (women only) over time, an increase in self-reported experiences of racial/ethnic discrimination over time was significantly associated with an increase in waist circumference (b=1.09, 95% CI: 0.00–2.19, p=0.05) and an increase in body mass index (b=0.67, 95% CI: 0.19–1.16, p=0.007) among Black women. No associations were observed among Black men and White women and men. These findings suggest that an increase in self-reported experiences of racial/ethnic discrimination may be associated with increases in waist circumference and body mass index among Black women over time.